[#17] Improve S3-FIFO

[maypok86]

Description

1. Added eviction of an item from the main queue at 20 reinsertions into the main queue.

2. Performed a small refactoring of the algorithm

Related issue(s)

#17

✅ Checklist for your Pull Request

Related changes (conditional)

• Tests

  • If I added new functionality, I added tests covering it.
  • If I fixed a bug, I added a regression test to prevent the bug from
    silently reappearing again.

• Documentation

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    • README

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[codecov-commenter]

Codecov Report

Attention: 22 lines in your changes are missing coverage. Please review.

Comparison is base (f1b9436) 82.64% compared to head (a71450d) 81.18%.
Report is 3 commits behind head on main.

Files	Patch %	Lines
cache.go	52.17%	19 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
- Coverage   82.64%   81.18%   -1.47%     
==========================================
  Files           9        9              
  Lines         657      691      +34     
==========================================
+ Hits          543      561      +18     
- Misses         99      115      +16     
  Partials       15       15              

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