feat: add RedisEventStore for production SSE resumability #2259

Job	Run time
checks / readme-snippets	13s
checks / pre-commit	34s
checks / test (3.11, locked, windows-latest)	2m 25s
checks / test (3.10, locked, windows-latest)	2m 9s
checks / test (3.12, locked, windows-latest)	3m 9s
checks / test (3.12, lowest-direct, windows-latest)	4m 24s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.11, locked, ubuntu-latest)	50s
checks / test (3.11, lowest-direct, ubuntu-latest)	51s
checks / test (3.13, lowest-direct, ubuntu-latest)	44s
checks / test (3.13, locked, ubuntu-latest)	48s
checks / test (3.14, lowest-direct, windows-latest)	18s
checks / test (3.10, lowest-direct, windows-latest)	2m 31s
checks / test (3.10, lowest-direct, ubuntu-latest)	52s
checks / test (3.10, locked, ubuntu-latest)	54s
checks / test (3.13, locked, windows-latest)	2m 38s
checks / test (3.14, locked, ubuntu-latest)	2m 23s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 10s
checks / test (3.12, locked, ubuntu-latest)	53s
checks / test (3.11, lowest-direct, windows-latest)	2m 43s
checks / test (3.13, lowest-direct, windows-latest)	2m 44s
checks / test (3.14, locked, windows-latest)	3m 6s
all-green	5s
	37m 24s

Provide feedback