ci: removing linkage-monitor from the required checks (#737)

* changes without context

        autosynth cannot find the source of changes triggered by earlier changes in this
        repository, or by version upgrades to tools such as linters.

* chore: enable release-trigger bot

Source-Author: Jeff Ching <chingor@google.com>
Source-Date: Tue Aug 24 15:30:40 2021 -0700
Source-Repo: googleapis/synthtool
Source-Sha: 63cff634aabb85854caa511c5837ea6b45f42b4b
Source-Link: googleapis/synthtool@63cff63

* ci: removing linkage-monitor from the required checks

Source-Author: Tomo Suzuki <suztomo@google.com>
Source-Date: Wed Aug 25 13:18:10 2021 -0400
Source-Repo: googleapis/synthtool
Source-Sha: e2aa5bcc3356d9e3b8b53de3b5c86226447d3a22
Source-Link: googleapis/synthtool@e2aa5bc

* chore(java): install maven 3.8.1 at runtime

* chore: pin github action runner at ubuntu-16.04

* chore: install maven 3.8.1 at runtime

* chore: fix typo

Source-Author: Neenu Shaji <Neenu1995@users.noreply.github.com>
Source-Date: Thu Sep 2 15:46:06 2021 -0400
Source-Repo: googleapis/synthtool
Source-Sha: ad7fd76e17bf9494a3e47ff9cf445f61564432e0
Source-Link: googleapis/synthtool@ad7fd76

* chore(java): update windows build

to install maven 3.8.1 at runtime too (related to #1202)

Tested in [java-bigquerystorage](googleapis/java-bigquerystorage@7834f4f)

Source-Author: Stephanie Wang <stephaniewang526@users.noreply.github.com>
Source-Date: Tue Sep 7 13:04:27 2021 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 17ee6e5c08f2eb47029beee4776ce990e56b3925
Source-Link: googleapis/synthtool@17ee6e5

* chore(java): remove readme autosynth job config

README generation is now handled by owlbot

Source-Author: Jeff Ching <chingor@google.com>
Source-Date: Wed Sep 8 12:11:28 2021 -0700
Source-Repo: googleapis/synthtool
Source-Sha: df5093b950d4aafd49a4c7758d74c44485263ada
Source-Link: googleapis/synthtool@df5093b

* chore: remove readme synth.py config

Source-Author: Jeff Ching <chingor@google.com>
Source-Date: Wed Sep 8 13:23:41 2021 -0700
Source-Repo: googleapis/synthtool
Source-Sha: 2d31a9243781b282202b4f76dc7bbc8b45803196
Source-Link: googleapis/synthtool@2d31a92

* chore: add gcf-owl-bot to list of trusted contributors

Source-Author: Jeff Ching <chingor@google.com>
Source-Date: Wed Sep 8 13:42:12 2021 -0700
Source-Repo: googleapis/synthtool
Source-Sha: a6b97202771f89a4b76873d43ea9a07d7fc95f91
Source-Link: googleapis/synthtool@a6b9720

* chore(java): update shared-config and shared-dependencies version in pom template

Source-Author: Neenu Shaji <Neenu1995@users.noreply.github.com>
Source-Date: Wed Sep 8 17:28:48 2021 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 396d9b84a1e93880f5bf88b59ecd38a0a6dffc5e
Source-Link: googleapis/synthtool@396d9b8

Co-authored-by: Les Vogel <lesv@users.noreply.github.com>
Co-authored-by: Neenu Shaji <Neenu1995@users.noreply.github.com>

.github/release-trigger.yml

@@ -0,0 +1 @@
+enabled: true

.github/trusted-contribution.yml

@@ -1,2 +1,3 @@
 trustedContributors:
-- renovate-bot
+- renovate-bot
+- gcf-owl-bot[bot]

.github/workflows/ci.yaml

@@ -12,6 +12,9 @@ jobs:
         java: [8, 11]
     steps:
     - uses: actions/checkout@v2
+    - uses: stCarolas/setup-maven@v4
+      with:
+        maven-version: 3.8.1
     - uses: actions/setup-java@v1
       with:
         java-version: ${{matrix.java}}
@@ -23,6 +26,9 @@ jobs:
     runs-on: windows-latest
     steps:
     - uses: actions/checkout@v2
+    - uses: stCarolas/setup-maven@v4
+      with:
+        maven-version: 3.8.1
     - uses: actions/setup-java@v1
       with:
         java-version: 8
@@ -37,28 +43,21 @@ jobs:
         java: [8, 11]
     steps:
     - uses: actions/checkout@v2
+    - uses: stCarolas/setup-maven@v4
+      with:
+        maven-version: 3.8.1
     - uses: actions/setup-java@v1
       with:
         java-version: ${{matrix.java}}
     - run: java -version
     - run: .kokoro/dependencies.sh
-  linkage-monitor:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
-      with:
-        java-version: 8
-    - run: java -version
-    - name: Install artifacts to local Maven repository
-      run: .kokoro/build.sh
-      shell: bash
-    - name: Validate any conflicts with regard to com.google.cloud:libraries-bom (latest release)
-      uses: GoogleCloudPlatform/cloud-opensource-java/linkage-monitor@v1-linkagemonitor
   lint:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+    - uses: stCarolas/setup-maven@v4
+      with:
+        maven-version: 3.8.1
     - uses: actions/setup-java@v1
       with:
         java-version: 8
@@ -70,6 +69,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+    - uses: stCarolas/setup-maven@v4
+      with:
+        maven-version: 3.8.1
     - uses: actions/setup-java@v1
       with:
         java-version: 8

.kokoro/release/common.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2018 Google Inc.
+# Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

.kokoro/release/drop.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2018 Google Inc.
+# Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

.kokoro/release/promote.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2018 Google Inc.
+# Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

.kokoro/release/publish_javadoc.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2019 Google Inc.
+# Copyright 2019 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

.kokoro/release/publish_javadoc11.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2021 Google Inc.
+# Copyright 2021 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

.kokoro/release/stage.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2018 Google Inc.
+# Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

.kokoro/trampoline.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2018 Google Inc.
+# Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

synth.metadata

@@ -11,7 +11,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "ff01716e16d2c6e87eaf87197b753ac9fcbbed5d"
+        "sha": "396d9b84a1e93880f5bf88b59ecd38a0a6dffc5e"
       }
     }
   ],
@@ -23,8 +23,8 @@
     ".github/PULL_REQUEST_TEMPLATE.md",
     ".github/blunderbuss.yml",
     ".github/generated-files-bot.yml",
-    ".github/readme/synth.py",
     ".github/release-please.yml",
+    ".github/release-trigger.yml",
     ".github/snippet-bot.yml",
     ".github/sync-repo-settings.yaml",
     ".github/trusted-contribution.yml",
@@ -37,7 +37,6 @@
     ".kokoro/common.sh",
     ".kokoro/continuous/common.cfg",
     ".kokoro/continuous/java8.cfg",
-    ".kokoro/continuous/readme.cfg",
     ".kokoro/dependencies.sh",
     ".kokoro/nightly/common.cfg",
     ".kokoro/nightly/java11.cfg",