Add support for new setAllowHardBoundTokens field. #9575

Job	Run time
build (11)	14m 36s
build(21) except self-service clients	13m 1s
build (17)	14m 34s
build(8) except for gapic-generator-java	1m 15s
lint	21s
build(8) for gapic-generator-java	53s
compatibility	53s
dependency_analyzer_unit_test	11s
gapic-generator-java-bom	1m 44s
showcase (11)	4m 39s
showcase-clirr	2m 19s
showcase (17)	4m 38s
showcase-native	8m 31s
unmanaged_dependency_check	5m 15s
showcase (21)	4m 26s
	1h 17m 16s

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