Add support for new setAllowHardBoundTokens field. #9837

Job	Run time
build (11)	14m 42s
build(21) except self-service clients	14m 24s
build (17)	14m 29s
build(8) except for gapic-generator-java	1m 26s
compatibility	48s
build(8) for gapic-generator-java	49s
gapic-generator-java-bom	1m 54s
lint	23s
showcase (11)	4m 25s
showcase-clirr	2m 16s
showcase (17)	4m 40s
showcase-native	8m 54s
showcase (21)	4m 32s
dependency_analyzer_unit_test	13s
unmanaged_dependency_check	3m 38s
	1h 17m 33s

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