CLI code coverage reporting

[gnalh]

Add support for reporting code coverage for cli integration tests. This required moving away from escargot and moving the cli-tests into the cli directory. You can see the coverage below when running cargo llvm-cov --html against the cli integration tests.
Before:

After:

[trunk-io]

😎 Merged manually by Gabriel Al-Harbi (@gnalh) - details.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.09%. Comparing base (4d1f204) to head (36f08b5).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #953      +/-   ##
==========================================
+ Coverage   73.58%   81.09%   +7.50%     
==========================================
  Files          72       66       -6     
  Lines       16461    14081    -2380     
==========================================
- Hits        12113    11419     -694     
+ Misses       4348     2662    -1686     

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[gnalh]

/trunk skip-check

[trunk-staging-io]

     

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