⚗️ Update cpp-linter to v2

[burgholzer]

Description

This PR updates the cpp-linter to the latest major version (https://github.com/cpp-linter/cpp-linter-action/releases/tag/v2.0.0). This should speed up the runtime of the respective checks. Furthermore, by using the dedicated GitHub Action, we automatically benefit from dependabot updates in the future.

Checklist:

• The pull request only contains commits that are related to it.
• I have added appropriate tests and documentation.
• I have made sure that all CI jobs on GitHub pass.
• The pull request introduces no new warnings and follows the project's style guidelines.

[codecov]

Codecov Report

Merging #132 (1f9153b) into main (345e453) will increase coverage by 0.0%.
The diff coverage is n/a.

@@          Coverage Diff          @@
##            main    #132   +/-   ##
=====================================
  Coverage   98.1%   98.1%           
=====================================
  Files         35      35           
  Lines       1707    1707           
  Branches     199     199           
=====================================
+ Hits        1675    1676    +1     
+ Misses        32      31    -1     

Impacted Files	Coverage Δ
src/checker/dd/DDEquivalenceChecker.cpp	96.1% <0.0%> (+0.9%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.