perf: don't iter evicted entries with noop disk cache

[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

This PR bypass the iteration with noop disk cache.

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)

#830

[codecov]

Codecov Report

Attention: Patch coverage is 86.95652% with 6 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
foyer-memory/src/cache.rs	57.14%	3 Missing ⚠️
foyer-memory/src/raw.rs	81.81%	2 Missing ⚠️
foyer-memory/src/pipe.rs	85.71%	1 Missing ⚠️

Files with missing lines	Coverage Δ
foyer-storage/src/store.rs	86.63% <100.00%> (+0.09%)	⬆️
foyer/src/hybrid/builder.rs	93.61% <100.00%> (-0.45%)	⬇️
foyer/src/hybrid/cache.rs	82.89% <100.00%> (ø)
foyer-memory/src/pipe.rs	89.23% <85.71%> (-0.43%)	⬇️
foyer-memory/src/raw.rs	88.96% <81.81%> (+0.50%)	⬆️
foyer-memory/src/cache.rs	78.51% <57.14%> (-0.90%)	⬇️

... and 1 file with indirect coverage changes