Bump netty4.version from 4.1.97.Final to 4.1.99.Final #3955

Job	Run time
build-all	1m 25s
build-java11	1m 44s
tests (driver, 8)	1m 8s
tests (server, 8)	3m 49s
tests (test, 8)	10m 21s
tests (inmemory, -Dtest.skip.tp=false, 8)	32m 53s
tests (berkeleyje, 8)	9m 44s
tests (lucene, 8)	4m 52s
tests (driver, -Pjava-11, 11)	1m 15s
tests (server, -Pjava-11, 11)	3m 55s
tests (test, -Pjava-11, 11)	8m 55s
tests (inmemory, -Pjava-11, -Dtest.skip.tp=false, 11)	35m 57s
tests (berkeleyje, -Pjava-11, 11)	10m 16s
tests (lucene, -Pjava-11, 11)	5m 19s
	2h 11m 33s

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