Add a client-side response cache honoring SEP-2549 caching hints #3211

Job	Run time
checks / pre-commit	52s
checks / docs	40s
checks / readme-snippets	13s
checks / test (3.11, locked, windows-latest)	1m 57s
checks / test (3.10, locked, ubuntu-latest)	1m 24s
checks / test (3.12, locked, ubuntu-latest)	1m 31s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.12, locked, windows-latest)	1m 48s
checks / test (3.10, locked, windows-latest)	1m 39s
checks / test (3.11, locked, ubuntu-latest)	1m 11s
checks / test (3.10, lowest-direct, windows-latest)	1m 57s
checks / test (3.11, lowest-direct, windows-latest)	2m 12s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 20s
checks / test (3.13, locked, windows-latest)	1m 53s
checks / test (3.14, lowest-direct, windows-latest)	1m 41s
checks / test (3.14, locked, ubuntu-latest)	2m 9s
checks / test (3.12, lowest-direct, windows-latest)	1m 59s
checks / test (3.13, lowest-direct, windows-latest)	1m 52s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 5s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 12s
checks / test (3.13, locked, ubuntu-latest)	1m 12s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 5s
checks / test (3.14, locked, windows-latest)	3m 2s
all-green	4s
	35m 22s

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