Regenerate automl 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-automl/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:9aed6bbde54e26d2fcde7aa86d9f64c0278f741e58808c46573e488cbf6098f0
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/automl/artman_automl_v1beta1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 19 files
synthtool > Running java formatter on 2 files
synthtool > Running java formatter on 260 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #5865 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #5865   +/-   ##
=========================================
  Coverage     46.79%   46.79%           
  Complexity    25648    25648           
=========================================
  Files          2456     2456           
  Lines        267593   267593           
  Branches      30564    30564           
=========================================
  Hits         125228   125228           
  Misses       133106   133106           
  Partials       9259     9259

Impacted Files	Coverage Δ	Complexity Δ
.../cloud/automl/v1beta1/stub/AutoMlStubSettings.java	87.6% <ø> (ø)	43 <0> (ø)	⬇️
...ml/v1beta1/stub/PredictionServiceStubSettings.java	83.18% <ø> (ø)	12 <0> (ø)	⬇️
...om/google/cloud/automl/v1beta1/AutoMlSettings.java	7.52% <ø> (ø)	2 <0> (ø)	⬇️
...loud/automl/v1beta1/PredictionServiceSettings.java	21.21% <ø> (ø)	2 <0> (ø)	⬇️

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[chingor13]

Combined into a single pull request #5880