ENH: add 'filter-contigs' action

[misialq]

Closes #91.
Closes #84.

[VinzentRisch]

Hey Michal
The actions needs a validation step that checks if the parameter combination is allowed.

• The action can be run without any parameter what will just copy the artifact without any filtering. I think there should rather be an error message.
• I can use the action without the metadata parameter but with the where parameter. How I understand it, the where parameter then has no effect. This should also lead to an error.

Copilot reviewed 5 out of 5 changed files in this pull request and generated no suggestions.

[codecov]

Codecov Report

Attention: Patch coverage is 97.19626% with 3 lines in your changes missing coverage. Please review.

Project coverage is 98.28%. Comparing base (fda616a) to head (ed4723b).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
q2_assembly/filter/filter.py	94.54%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #92      +/-   ##
==========================================
- Coverage   98.32%   98.28%   -0.05%     
==========================================
  Files          38       41       +3     
  Lines        2745     2851     +106     
==========================================
+ Hits         2699     2802     +103     
- Misses         46       49       +3     

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[VinzentRisch]

Hi everything looks good! I just found a typo in one error message.

[VinzentRisch]

👍