chore(main): release 1.85.0 #1092

Job	Run time
filter	1m 9s
build(8) except for gapic-generator-java	1m 40s
build(25) except self-service clients	10m 42s
build(8) for showcase	10m 47s
build(8) for gapic-generator-java	6m 53s
unmanaged_dependency_check	9m 52s
build(21) except self-service clients	10m 52s
build (17)	8m 2s
build (11)	7m 47s
gapic-generator-java-bom	3m 7s
showcase (21)	12m 57s
dependency_analyzer_unit_test	1m 30s
showcase (25)	14m 8s
showcase-clirr	5m 29s
showcase (11)	13m 50s
showcase (17)	13m 40s
	2h 12m 25s

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