deps: update google auth library dependencies to v1.31.0 (#3577) #9929

Job	Run time
build (11)	14m 43s
build(21) except self-service clients	13m 31s
build (17)	15m 12s
build(8) except for gapic-generator-java	4m 31s
build(8) for gapic-generator-java	11m 4s
compatibility	1m 39s
dependency_analyzer_unit_test	18s
gapic-generator-java-bom	1m 50s
lint	35s
showcase (11)	4m 36s
showcase-clirr	0s
showcase (17)	4m 34s
unmanaged_dependency_check	6m 48s
showcase (21)	4m 22s
showcase (23)	4m 24s
	1h 28m 7s

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