chore: linkage monitor check should skipp clirr and enforcer

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Commits in this repo since last synth:
54bfd48 chore: release 1.92.5-SNAPSHOT (#145)
f2b0eca chore: release 1.92.4 (#144)
454ce1d deps: update core dependencies (#143)

Log from Synthtool

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/synth.py.
.github/ISSUE_TEMPLATE/bug_report.md
.github/ISSUE_TEMPLATE/feature_request.md
.github/ISSUE_TEMPLATE/support_request.md
.github/PULL_REQUEST_TEMPLATE.md
.github/release-please.yml
.kokoro/build.bat
.kokoro/build.sh
.kokoro/coerce_logs.sh
.kokoro/common.cfg
.kokoro/continuous/common.cfg
.kokoro/continuous/dependencies.cfg
.kokoro/continuous/integration.cfg
.kokoro/continuous/java11.cfg
.kokoro/continuous/java7.cfg
.kokoro/continuous/java8-osx.cfg
.kokoro/continuous/java8-win.cfg
.kokoro/continuous/java8.cfg
.kokoro/continuous/lint.cfg
.kokoro/continuous/propose_release.cfg
.kokoro/continuous/propose_release.sh
.kokoro/continuous/samples.cfg
.kokoro/dependencies.sh
.kokoro/linkage-monitor.sh
.kokoro/nightly/common.cfg
.kokoro/nightly/dependencies.cfg
.kokoro/nightly/integration.cfg
.kokoro/nightly/java11.cfg
.kokoro/nightly/java7.cfg
.kokoro/nightly/java8-osx.cfg
.kokoro/nightly/java8-win.cfg
.kokoro/nightly/java8.cfg
.kokoro/nightly/lint.cfg
.kokoro/nightly/samples.cfg
.kokoro/presubmit/clirr.cfg
.kokoro/presubmit/common.cfg
.kokoro/presubmit/dependencies.cfg
.kokoro/presubmit/integration.cfg
.kokoro/presubmit/java11.cfg
.kokoro/presubmit/java7.cfg
.kokoro/presubmit/java8-osx.cfg
.kokoro/presubmit/java8-win.cfg
.kokoro/presubmit/java8.cfg
.kokoro/presubmit/linkage-monitor.cfg
.kokoro/presubmit/lint.cfg
.kokoro/presubmit/samples.cfg
.kokoro/release/bump_snapshot.cfg
.kokoro/release/bump_snapshot.sh
.kokoro/release/common.cfg
.kokoro/release/common.sh
.kokoro/release/drop.cfg
.kokoro/release/drop.sh
.kokoro/release/promote.cfg
.kokoro/release/promote.sh
.kokoro/release/publish_javadoc.cfg
.kokoro/release/publish_javadoc.sh
.kokoro/release/snapshot.cfg
.kokoro/release/snapshot.sh
.kokoro/release/stage.cfg
.kokoro/release/stage.sh
.kokoro/trampoline.sh
CODE_OF_CONDUCT.md
CONTRIBUTING.md
LICENSE
README.md
codecov.yaml
java.header
license-checks.xml
renovate.json
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #147 into master will increase coverage by 0.19%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #147      +/-   ##
============================================
+ Coverage     66.48%   66.68%   +0.19%     
+ Complexity      370      365       -5     
============================================
  Files            34       34              
  Lines          1877     1870       -7     
  Branches        240      237       -3     
============================================
- Hits           1248     1247       -1     
+ Misses          527      521       -6     
  Partials        102      102

Impacted Files	Coverage Δ	Complexity Δ
.../com/google/cloud/MonitoredResourceDescriptor.java	83.76% <0%> (-0.28%)	20% <0%> (-4%)
...a/com/google/cloud/testing/BaseEmulatorHelper.java	31.21% <0%> (-0.22%)	5% <0%> (ø)
...src/main/java/com/google/cloud/ServiceOptions.java	44.22% <0%> (-0.05%)	32% <0%> (-1%)
...re/src/main/java/com/google/cloud/RetryHelper.java	53.84% <0%> (+3.84%)	2% <0%> (ø)	⬇️
.../java/com/google/cloud/testing/CommandWrapper.java	96.96% <0%> (+9.09%)	13% <0%> (ø)	⬇️

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