Bump redis from 4.5.4 to 5.2.0 in /requirements #15246

Job	Run time
tests (python, 05)	18m 28s
tests (python, 6a)	15m 16s
tests (python, bf)	15m 26s
tests (python-sharded-and-javascript)	17m 13s
	1h 6m 23s

Provide feedback