feat: add RedisEventStore for production SSE resumability #2258

Job	Run time
checks / pre-commit	29s
checks / readme-snippets	10s
checks / test (3.10, lowest-direct, ubuntu-latest)	48s
checks / test (3.11, lowest-direct, ubuntu-latest)	45s
checks / test (3.11, locked, ubuntu-latest)	45s
checks / test (3.12, lowest-direct, ubuntu-latest)	52s
checks / test (3.10, locked, ubuntu-latest)	48s
checks / test (3.13, lowest-direct, windows-latest)	2m 30s
checks / test (3.10, lowest-direct, windows-latest)	2m 47s
checks / test (3.13, lowest-direct, ubuntu-latest)	45s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.10, locked, windows-latest)	2m 20s
checks / test (3.11, lowest-direct, windows-latest)	2m 48s
checks / test (3.12, locked, windows-latest)	3m 20s
checks / test (3.12, locked, ubuntu-latest)	55s
checks / test (3.14, locked, windows-latest)	3m 22s
checks / test (3.13, locked, ubuntu-latest)	45s
checks / test (3.14, locked, ubuntu-latest)	2m 18s
checks / test (3.11, locked, windows-latest)	2m 23s
checks / test (3.12, lowest-direct, windows-latest)	3m 39s
checks / test (3.14, lowest-direct, windows-latest)	2m 42s
checks / test (3.13, locked, windows-latest)	2m 32s
all-green	3s
	39m 0s

Provide feedback