feat(#157): test tagging via tagrs

[h1alexbel]

closes #157

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PR-Codex overview

This PR introduces a new dependency, updates CI configurations, and modifies the justfile for improved build and test processes. It also adds new test cases and applies a tagging system for better organization.

Detailed summary

• Added tagrs dependency in cli/Cargo.toml.
• Updated GitHub Actions workflow to run just full "deep,fast".
• Introduced two new tests (outputs_help, outputs_start_opts) tagged as "deep" in cli/tests/integration_test.rs.
• Modified full target in justfile to accept tests parameter.
• Updated build target to take tests parameter.
• Changed test target to use a which parameter.
• Updated Rultor merge script to run tests with the tag "deep,fast".

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.15%. Comparing base (c23e170) to head (1feccaa).
Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #183   +/-   ##
=======================================
  Coverage   83.15%   83.15%           
=======================================
  Files          16       16           
  Lines         285      285           
=======================================
  Hits          237      237           
  Misses         48       48           

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[h1alexbel]

@rultor merge

[rultor]

@rultor merge

@h1alexbel OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@h1alexbel Done! FYI, the full log is here (took me 55min)

[0crat]

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