Use cfg_aliases to reduce boilerplate

[Felixoid]

cfg_aliases allows to define a long any(feature = "",....) only once and then reuse it.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 87.38739% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.94%. Comparing base (4fcb161) to head (7692678).

Files with missing lines	Patch %	Lines
src/config.rs	81.25%	12 Missing ⚠️
src/cache/multilevel.rs	84.61%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2644      +/-   ##
==========================================
- Coverage   74.18%   73.94%   -0.24%     
==========================================
  Files          71       72       +1     
  Lines       40505    41457     +952     
==========================================
+ Hits        30049    30657     +608     
- Misses      10456    10800     +344     

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[Felixoid]

#2581 has 4 more places that would benefit from this patch.

[Felixoid]

The codecov issue is related to codecov/codecov-action#1940

[codspeed-hq]

Merging this PR will not alter performance

✅ 58 untouched benchmarks
⏩ 6 skipped benchmarks¹

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_{Comparing Felixoid:cfg-aliases (7692678) with main (4fcb161)}

Footnotes

1. 6 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[Felixoid]

This block didn't have cos case.

Having a single point of global features gate and cache type addresses it

[Felixoid]

Hey dear @sylvestre

Do you think it's worth merging? I feel it would improve the codebase by consolidating all feature-related stuff in a dedicated place.