Regenerate containeranalysis client

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Here's the log from Synthtool:

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/google-cloud-clients/google-cloud-containeranalysis/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:6929f343c400122d85818195b18613330a12a014bffc1e08499550d40571479d
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/devtools/containeranalysis/artman_containeranalysis_v1beta1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 31 files
synthtool > Running java formatter on 2 files
synthtool > Running java formatter on 241 files
synthtool > Running generator for google/devtools/containeranalysis/artman_containeranalysis_v1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Replaced 'import com.google.iam.v1.TestIamPermissionsResponse;' in /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java/gapic-google-cloud-containeranalysis-v1/src/main/java/com/google/cloud/devtools/containeranalysis/v1/ContainerAnalysisClient.java.
synthtool > Replaced '(\\s+private final ContainerAnalysisStub stub;.*)' in /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java/gapic-google-cloud-containeranalysis-v1/src/main/java/com/google/cloud/devtools/containeranalysis/v1/ContainerAnalysisClient.java.
synthtool > Running java formatter on 31 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 7 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #5966 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@ Coverage Diff @@## master #5966 +/- ##
============================================
+ Coverage 46.79% 46.79% +<.01% + Complexity 25663 25648 -15 
============================================
Files 2456 2456 Lines 267638 267641 +3 Branches 30559 30564 +5 ============================================
+ Hits 125244 125247 +3 
Misses 133134 133134 Partials 9260 9260

Impacted Files	Coverage Δ	Complexity Δ
...ta1/stub/ContainerAnalysisV1Beta1StubSettings.java	80.43% <100%> (+0.14%)	16 <1> (ø)	⬇️
...lysis/v1beta1/stub/GrafeasV1Beta1StubSettings.java	81.42% <100%> (+0.07%)	25 <1> (ø)	⬇️
...nalysis/v1/stub/ContainerAnalysisStubSettings.java	80.2% <100%> (+0.2%)	12 <1> (ø)	⬇️

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[chingor13]

Combined into a single pull request #6023