Regenerate dlp 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-dlp/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:5fd9aee1d82a00cebf425c8fa431f5457539562f5867ad9c54370f0ec9a7ccaa
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/privacy/dlp/artman_dlp_v2.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 10 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 287 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #4520 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4520      +/-   ##
============================================
+ Coverage     49.16%   49.16%   +<.01%     
+ Complexity    21933    21932       -1     
============================================
  Files          2077     2077              
  Lines        207079   207079              
  Branches      24099    24099              
============================================
+ Hits         101803   101807       +4     
+ Misses        97104    97099       -5     
- Partials       8172     8173       +1

Impacted Files	Coverage Δ	Complexity Δ
...able/gaxx/reframing/ReframingResponseObserver.java	88.99% <0%> (-1.84%)	29% <0%> (-1%)
.../cloud/datastore/testing/LocalDatastoreHelper.java	84.61% <0%> (+4.61%)	14% <0%> (ø)	⬇️
.../java/com/google/cloud/testing/CommandWrapper.java	96.96% <0%> (+9.09%)	13% <0%> (ø)	⬇️

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