Regenerate tasks 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-tasks/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/tasks/artman_cloudtasks_v2beta2.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 20 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 71 files
synthtool > Running generator for google/cloud/tasks/artman_cloudtasks_v2beta3.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 20 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 57 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #4550 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4550      +/-   ##
============================================
- Coverage     49.19%   49.19%   -0.01%     
+ Complexity    21957    21956       -1     
============================================
  Files          2076     2076              
  Lines        207407   207407              
  Branches      24108    24108              
============================================
- Hits         102030   102028       -2     
- Misses        97205    97206       +1     
- Partials       8172     8173       +1

Impacted Files	Coverage Δ	Complexity Δ
...able/gaxx/reframing/ReframingResponseObserver.java	88.99% <0%> (-1.84%)	29% <0%> (-1%)

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