Bump codecov/codecov-action from 3 to 4 #223

Job	Run time
build-all	1m 9s
build-java11	1m 15s
tests (core, 8)	1m 0s
tests (driver, 8)	1m 0s
tests (server, 8)	3m 19s
tests (test, 8)	6m 17s
tests (inmemory, -Dtest.skip.tp=false, 8)	30m 39s
tests (berkeleyje, 8)	8m 40s
tests (lucene, 8)	4m 22s
tests (core, -Pjava-11, 11)	1m 15s
tests (driver, -Pjava-11, 11)	1m 1s
tests (server, -Pjava-11, 11)	3m 38s
tests (test, -Pjava-11, 11)	6m 49s
tests (inmemory, -Pjava-11, -Dtest.skip.tp=false, 11)	30m 50s
tests (berkeleyje, -Pjava-11, 11)	8m 48s
tests (lucene, -Pjava-11, 11)	4m 33s
	1h 54m 35s

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