feat: Add support for custom configuration files

[kevintyj]

What is the purpose of this PR?

Adds the ability for users to input a explicit javascript configuration file path for commitlint

ClickUp/Jira/Github project ticket number(s)?

What did you do?

Add a GitHub action input cl-config for the file path for commitlint on the repository. README updated to reflect changes

How do we test it?

Vitest tests passing & coverage unchanged.

Checklist before merging

• [x] Added tests where necessary
• [x] Performed a self-review of my code
• [x] Ensure all acceptance criteria are met
• [x] Implemented the UI as exactly as the design (applicable only for UI changes)
• [x] Added comments for codes where hard-to-understand
• [x] Haven't pushed unnecessary files (ex: .env, .map)
• [x] Haven't ignored Typescript warnings in the code (if do so add a comment with the reason)

Provide screenshot details of the PR

[optional] Tests passed screenshot

[optional] Breaking changes after PR

Anything else?

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

:exclamation: No coverage uploaded for pull request base (main@43be185). Click here to learn what that means.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #9 +/- ## ======================================== Coverage ? 100.00% ======================================== Files ? 4 Lines ? 123 Branches ? 23 ======================================== Hits ? 123 Misses ? 0 Partials ? 0 ```

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