Add a client-side response cache honoring SEP-2549 caching hints #3210

Job	Run time
checks / pre-commit	50s
checks / readme-snippets	15s
checks / docs	38s
checks / test (3.14, lowest-direct, windows-latest)	1m 33s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 12s
checks / test (3.11, locked, windows-latest)	2m 8s
checks / test (3.14, locked, ubuntu-latest)	2m 9s
checks / test (3.13, locked, windows-latest)	1m 53s
checks / test (3.14, locked, windows-latest)	3m 1s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 13s
checks / test (3.13, locked, ubuntu-latest)	1m 10s
checks / test (3.11, locked, ubuntu-latest)	1m 14s
checks / test (3.10, lowest-direct, windows-latest)	1m 45s
checks / test (3.12, locked, windows-latest)	1m 44s
checks / test (3.13, lowest-direct, windows-latest)	2m 2s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.12, lowest-direct, windows-latest)	1m 49s
checks / test (3.11, lowest-direct, windows-latest)	1m 40s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 17s
checks / test (3.12, locked, ubuntu-latest)	1m 39s
checks / test (3.10, locked, ubuntu-latest)	1m 17s
checks / test (3.10, locked, windows-latest)	2m 1s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 15s
all-green	5s
	35m 11s

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