feat: Automated regeneration of file v1beta1 client (#27202) #47790

Job	Run time
CI (macos-latest, 4.0, --include-spec)	37s
CI (ubuntu-latest, 4.0, --include-spec --include-yardoc --include-build, --enable-frozen-string-l...	46s
CI (ubuntu-latest, 3.2, --include-spec)	43s
CI (ubuntu-latest, 3.3, --include-spec)	44s
CI (ubuntu-latest, 3.4, --include-spec)	44s
CI (windows-latest, 4.0, --include-spec)	1m 49s
	5m 23s

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