Fix audit decompressor security miscellaneous comments

[Chralt98]

What does it do?

What important points should reviewers know?

Is there something left for follow-up PRs?

What alternative implementations were considered?

Are there relevant PRs or issues?

References

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 81.57895% with 7 lines in your changes missing coverage. Please review.

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Files with missing lines	Patch %	Lines
...binatorial-tokens/src/types/collection_id_error.rs	0.00%	4 Missing ⚠️
zrml/combinatorial-tokens/src/lib.rs	40.00%	3 Missing ⚠️

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Additional details and impacted files

@@                Coverage Diff                 @@
##             mkl-audit-fixes    #1402   +/-   ##
==================================================
  Coverage                   ?   93.50%           
==================================================
  Files                      ?      182           
  Lines                      ?    34722           
  Branches                   ?        0           
==================================================
  Hits                       ?    32467           
  Misses                     ?     2255           
  Partials                   ?        0           

Flag	Coverage Δ
tests	93.50% <81.57%> (?)

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