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:f3d61ae45abaeefb6be5f228cda22732c2f1b00fb687c79c4bd4f2c42bb1e1a7
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 97 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #4563 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4563      +/-   ##
============================================
+ Coverage     49.19%   49.19%   +<.01%     
- Complexity    21962    21963       +1     
============================================
  Files          2077     2077              
  Lines        207440   207440              
  Branches      24111    24111              
============================================
+ Hits         102058   102060       +2     
+ Misses        97206    97205       -1     
+ Partials       8176     8175       -1

Impacted Files	Coverage Δ	Complexity Δ
...able/gaxx/reframing/ReframingResponseObserver.java	90.82% <0%> (+1.83%)	30% <0%> (+1%)	⬆️

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