feat: Automated regeneration of securitycenter v1beta2 client #47783

Job	Run time
CI (ubuntu-latest, 4.0, --include-spec --include-yardoc --include-build, --enable-frozen-string-l...	1m 4s
CI (macos-latest, 4.0, --include-spec)	41s
CI (windows-latest, 4.0, --include-spec)	1m 48s
CI (ubuntu-latest, 3.2, --include-spec)	48s
CI (ubuntu-latest, 3.4, --include-spec)	45s
CI (ubuntu-latest, 3.3, --include-spec)	48s
	5m 54s

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