chore(deps): update dependency com.google.cloud:google-cloud-build to…

… v3.1.0 (#583)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-build](https://togithub.com/googleapis/java-cloudbuild) | `3.0.1` -> `3.1.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-build/3.1.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-build/3.1.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-build/3.1.0/compatibility-slim/3.0.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-build/3.1.0/confidence-slim/3.0.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/java-cloudbuild</summary>

### [`v3.1.0`](https://togithub.com/googleapis/java-cloudbuild/blob/master/CHANGELOG.md#&#8203;310-httpswwwgithubcomgoogleapisjava-cloudbuildcomparev301v310-2021-08-24)

[Compare Source](https://togithub.com/googleapis/java-cloudbuild/compare/v3.0.1...v3.1.0)

##### Features

-   Add ability to configure BuildTriggers to create Builds that require approval before executing and ApproveBuild API to approve or reject pending Builds ([#&#8203;574](https://www.togithub.com/googleapis/java-cloudbuild/issues/574)) ([1e19e5a](https://www.github.com/googleapis/java-cloudbuild/commit/1e19e5adbe845c47b4b3d00e91f349a7b780142b))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.1.0 ([#&#8203;579](https://www.togithub.com/googleapis/java-cloudbuild/issues/579)) ([79e20e1](https://www.github.com/googleapis/java-cloudbuild/commit/79e20e13fd6f4e55faced2a41e56004bf47958d7))

##### [3.0.1](https://www.github.com/googleapis/java-cloudbuild/compare/v3.0.0...v3.0.1) (2021-08-12)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.0.1 ([#&#8203;568](https://www.togithub.com/googleapis/java-cloudbuild/issues/568)) ([e5a7e32](https://www.github.com/googleapis/java-cloudbuild/commit/e5a7e3289b3a070bb5d122063faea0220f150221))

</details>

---

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README.md

@@ -41,7 +41,7 @@ If you are using Maven without BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-build</artifactId>
-  <version>3.0.1</version>
+  <version>3.1.0</version>
 </dependency>
 
 ```

samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-build</artifactId>
-      <version>3.0.1</version>
+      <version>3.1.0</version>
     </dependency>
     <!-- [END build_install_without_bom] -->
 

samples/snapshot/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-build</artifactId>
-      <version>3.0.1</version>
+      <version>3.1.0</version>
     </dependency>
 
     <dependency>