Update TinkerPop to 3.7.3 [tp-tests][cql-tests] #5376

Job	Run time
build-all	3m 18s
tests (es, -Pelasticsearch8, es8-java8, 8)	30m 46s
tests (es, -Pelasticsearch7, es7-java8, 8)	29m 59s
tests (es, -Pelasticsearch6, es6-java8, 8)	29m 18s
tests (es, -Pelasticsearch60, es60-java8, 8)	28m 47s
tests (es, -Pjava-11, -Pelasticsearch8, es8, 11)	30m 6s
tests (es, -Pjava-11, -Pelasticsearch7, es7, 11)	29m 53s
tests (es, -Pjava-11, -Pelasticsearch6, es6, 11)	28m 53s
tests (es, -Pjava-11, -Pelasticsearch60, es60, 11)	28m 47s
	3h 59m 47s

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