Regenerate redis 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-redis/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:6929f343c400122d85818195b18613330a12a014bffc1e08499550d40571479d
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/redis/artman_redis_v1.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 37 files
synthtool > Running generator for google/cloud/redis/artman_redis_v1beta1.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 35 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #5984 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@ Coverage Diff @@## master #5984 +/- ##
============================================
+ Coverage 46.79% 46.79% +<.01% + Complexity 25663 25648 -15 
============================================
Files 2456 2456 Lines 267638 267640 +2 Branches 30559 30564 +5 ============================================
+ Hits 125244 125247 +3 + Misses 133134 133133 -1 
Partials 9260 9260

Impacted Files	Coverage Δ	Complexity Δ
...le/cloud/redis/v1/stub/CloudRedisStubSettings.java	88.99% <100%> (+0.03%)	24 <1> (ø)	⬇️
...oud/redis/v1beta1/stub/CloudRedisStubSettings.java	88.78% <100%> (+0.03%)	24 <1> (ø)	⬇️
...ain/java/com/google/cloud/pubsub/v1/Publisher.java	89.34% <0%> (+0.34%)	40% <0%> (ø)	⬇️

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[chingor13]

Combined into a single pull request #6022