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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