Update TinkerPop to 3.7.3 [tp-tests][cql-tests] #5411

Job	Run time
build-all	3m 9s
build-java11	2m 59s
tests (core, 8)	1m 22s
tests (driver, 8)	1m 9s
tests (server, 8)	3m 42s
tests (test, 8)	6m 30s
tests (inmemory, -Dtest.skip.tp=false, 8)	32m 5s
tests (berkeleyje, 8)	9m 21s
tests (lucene, 8)	4m 50s
tests (core, -Pjava-11, 11)	1m 33s
tests (driver, -Pjava-11, 11)	1m 12s
tests (server, -Pjava-11, 11)	3m 53s
tests (test, -Pjava-11, 11)	7m 12s
tests (inmemory, -Pjava-11, -Dtest.skip.tp=false, 11)	32m 34s
tests (berkeleyje, -Pjava-11, 11)	9m 21s
tests (lucene, -Pjava-11, 11)	4m 59s
	2h 5m 51s

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