3.x: netty 4.1.115, grpc-java 1.65.1 #848

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Run time

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Job	Run time
spotbugs	20m 21s
build (ubuntu-20.04)	37m 39s
archetypes (ubuntu-20.04)	21m 22s
checkstyle	3m 56s
copyright	3m 20s
examples (ubuntu-20.04)	11m 25s
docs	3m 41s
examples (macos-latest)	12m 42s
packaging (ubuntu-20.04)	11m 37s
tck (ubuntu-20.04)	26m 29s
packaging (macos-latest)	11m 22s
	2h 43m 54s