Add LangCache integration tests #841

Job	Run time
Service Tests	3m 43s
docs	29s
Python 3.9 - redis-py 5.x [redis latest]	2m 25s
Python 3.9 - redis-py 5.x [redis 6.2.6-v9]	2m 6s
Python 3.10 - redis-py 5.x [redis latest]	2m 43s
Python 3.9 - redis-py 6.x [redis latest]	4m 36s
Python 3.9 - redis-py 5.x [redis 8.0.2]	2m 10s
Python 3.9 - redis-py 6.x [redis 8.0.2]	2m 26s
Python 3.10 - redis-py 5.x [redis 8.0.2]	2m 11s
Python 3.9 - redis-py 6.x [redis 6.2.6-v9]	2m 24s
Python 3.10 - redis-py 6.x [redis latest]	4m 11s
Python 3.12 - redis-py 5.x [redis latest]	2m 33s
Python 3.10 - redis-py 6.x [redis 6.2.6-v9]	2m 9s
Python 3.12 - redis-py 6.x [redis 8.0.2]	2m 23s
Python 3.10 - redis-py 6.x [redis 8.0.2]	2m 19s
Python 3.12 - redis-py 5.x [redis 6.2.6-v9]	2m 8s
Python 3.12 - redis-py 6.x [redis latest]	5m 0s
Python 3.13 - redis-py 5.x [redis 6.2.6-v9]	2m 13s
Python 3.12 - redis-py 5.x [redis 8.0.2]	2m 31s
Python 3.10 - redis-py 5.x [redis 6.2.6-v9]	2m 4s
Python 3.12 - redis-py 6.x [redis 6.2.6-v9]	2m 11s
Python 3.13 - redis-py 5.x [redis latest]	2m 21s
Python 3.13 - redis-py 5.x [redis 8.0.2]	2m 14s
Python 3.13 - redis-py 6.x [redis latest]	4m 11s
Python 3.13 - redis-py 6.x [redis 6.2.6-v9]	2m 26s
Python 3.13 - redis-py 6.x [redis 8.0.2]	2m 41s
	1h 8m 48s

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