feat: support in-memory cache online resize

[MrCroxx]

What's changed and what's your intention?

Please explain IN DETAIL what the changes are in this PR and why they are needed. :D

As title.

Changes:

• Support online in-memory cache resize, add unit tests.
• Fix ModRandomState.

Checklist

• I have written the necessary rustdoc comments
• I have added the necessary unit tests and integration tests
• I have passed make all (or make fast instead if the old tests are not modified) in my local environment.

Related issues or PRs (optional)

close #691

[codecov]

Codecov Report

Attention: Patch coverage is 66.28352% with 88 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
foyer-common/src/hasher.rs	41.17%	30 Missing ⚠️
foyer-memory/src/eviction/lfu.rs	28.12%	23 Missing ⚠️
foyer-memory/src/error.rs	0.00%	13 Missing ⚠️
foyer-memory/src/eviction/lru.rs	47.05%	9 Missing ⚠️
foyer-memory/src/eviction/s3fifo.rs	61.90%	8 Missing ⚠️
foyer-memory/src/raw.rs	96.42%	4 Missing ⚠️
foyer-memory/src/cache.rs	0.00%	1 Missing ⚠️

Files with missing lines	Coverage Δ
foyer-memory/src/eviction/fifo.rs	92.13% <100.00%> (+1.33%)	⬆️
foyer-memory/src/eviction/mod.rs	100.00% <ø> (ø)
foyer-storage/src/small/generic.rs	76.59% <100.00%> (+0.37%)	⬆️
foyer-storage/src/test_utils.rs	87.75% <ø> (-2.25%)	⬇️
foyer-memory/src/cache.rs	79.23% <0.00%> (-0.19%)	⬇️
foyer-memory/src/raw.rs	92.10% <96.42%> (+1.00%)	⬆️
foyer-memory/src/eviction/s3fifo.rs	91.41% <61.90%> (+2.64%)	⬆️
foyer-memory/src/eviction/lru.rs	92.75% <47.05%> (+1.11%)	⬆️
foyer-memory/src/error.rs	0.00% <0.00%> (ø)
foyer-memory/src/eviction/lfu.rs	85.09% <28.12%> (-0.32%)	⬇️
... and 1 more

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