chore: Use go-enry for language detection

[ianlewis]

Description:

Use go-enry for language detection because it's better supported.

Related Issues:

Fixes #518 #1009

Checklist:

• Review the CONTRIBUTING.md documentation.
• Add a reference to a related issue in the repository.
• Add a description of the changes proposed in the pull request.
• Add unit tests if applicable.
• Update documentation if applicable.
• Add a note in the CHANGELOG.md if applicable.
• Sign the Google CLA.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.81%. Comparing base (6ee63ce) to head (ee8d85d).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1500      +/-   ##
==========================================
- Coverage   79.16%   78.81%   -0.36%     
==========================================
  Files          15       15              
  Lines         907      892      -15     
==========================================
- Hits          718      703      -15     
  Misses        138      138              
  Partials       51       51              

Files	Coverage Δ
internal/scanner/scanner.go	76.97% <100.00%> (-1.18%)	⬇️
internal/walker/walker.go	60.36% <100.00%> (ø)