feat: simplify foyer in-memory cache framework #197

Job	Run time
check build with madsim	1m 41s
run with leak saniziter	5m 42s
run with single worker thread and deadlock detection	5m 16s
run with address saniziter	6m 13s
rust ffmt check (ubuntu-latest)	26s
rust test with codecov (ubuntu-latest, stable)	11m 44s
rust udeps test (ubuntu-latest)	6m 40s
rust ffmt check (macos-latest)	14s
rust test with codecov (ubuntu-latest, 1.82.0)	11m 3s
rust udeps test (macos-latest)	6m 22s
rust ffmt check (windows-latest)	1m 40s
rust test with codecov (macos-latest, stable)	5m 38s
misc check	5s
rust udeps test (windows-latest)	12m 32s
rust test with codecov (macos-latest, 1.82.0)	7m 2s
rust test with codecov (windows-latest, stable)	9m 34s
rust test with codecov (windows-latest, 1.82.0)	10m 23s
	1h 42m 15s

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