Regenerate speech 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-speech/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:3246adac900f4bdbd62920e80de2e5877380e44036b3feae13667ec255ebf5ec
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/speech/artman_speech_v1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 23 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 33 files
synthtool > Running generator for google/cloud/speech/artman_speech_v1p1beta1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 23 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 33 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[codecov]

Codecov Report

Merging #5213 into master will not change coverage.
The diff coverage is n/a.

@@ Coverage Diff @@## master #5213 +/- ##
=========================================
Coverage 50.41% 50.41% Complexity 23796 23796 =========================================
Files 2251 2251 Lines 226836 226836 Branches 24966 24966 =========================================
Hits 114370 114370 Misses 103858 103858 Partials 8608 8608

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