Regenerate bigquerystorage 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-bigquerystorage/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:d3df563538225ac6caac45d8ad86499500211d1bcb2536955a6dbda15e1b368e
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/bigquery/storage/artman_bigquerystorage_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 4 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[sduskis]

The unit tests are failing:

[ERROR] ReadRowsRetryTest.multipleRetryTestWithNonZeroInitialOffset » DeadlineExceeded
[ERROR] ReadRowsRetryTest.multipleRetryTestWithZeroInitialOffset » DeadlineExceeded io...

[sduskis]

@shollyman, we no longer retry on DEADLINE_EXCEEDED by default. Should we remove the tests that expect a retry?

[shollyman]

Put together #5219 to address tests expecting retries for DEADLINE_EXCEEDED. Once that's in this can land.

[sduskis]

@shollyman Thanks! I'm rerunning the tests now.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@9d0badf). Click here to learn what that means.
The diff coverage is 100%.

@@ Coverage Diff @@## master #5198 +/- ##
=========================================
Coverage ? 50.45% Complexity ? 23855 =========================================
Files ? 2257 Lines ? 227301 Branches ? 24976 =========================================
Hits ? 114694 Misses ? 103989 Partials ? 8618

Impacted Files	Coverage Δ	Complexity Δ
...rage/v1beta1/stub/BigQueryStorageStubSettings.java	84.5% <100%> (ø)	14 <0> (?)

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