Add a client-side response cache honoring SEP-2549 caching hints #3216

Job	Run time
checks / pre-commit	45s
checks / docs	39s
checks / readme-snippets	11s
checks / test (3.12, locked, windows-latest)	2m 16s
checks / test (3.12, locked, ubuntu-latest)	1m 35s
checks / test (3.11, locked, ubuntu-latest)	1m 6s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 1s
checks / test (3.10, lowest-direct, windows-latest)	1m 51s
checks / test (3.11, locked, windows-latest)	1m 52s
checks / test (3.13, locked, windows-latest)	1m 47s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 23s
checks / test (3.12, lowest-direct, windows-latest)	1m 46s
checks / test (3.13, lowest-direct, windows-latest)	1m 53s
checks / test (3.13, locked, ubuntu-latest)	1m 14s
checks / test (3.11, lowest-direct, windows-latest)	1m 48s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.10, locked, ubuntu-latest)	1m 17s
checks / test (3.10, locked, windows-latest)	2m 4s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.14, lowest-direct, windows-latest)	1m 46s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.14, locked, windows-latest)	2m 38s
checks / test (3.14, locked, ubuntu-latest)	2m 12s
all-green	3s
	34m 45s

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