devops: switch to @tony.ganchev/eslint-plugin-header

[tonyganchev]

PR summary

Reasons:

• The fork is supported and updated.
• ESLint 9-native with full schema support and needing no hacks.
• Windows support
• Multiple other bugfixes.
• UX improvements - better error messages and more autofix capabilities.
• Extensive documentation.
• Better configuration format (although the old one is still supported).

Fixes: (not sure if non-maintainers should spam with devops issues).

PR Checklist

Please make sure that your PR fulfills the following requirements:

• [v] The commit message follows the
  Angular Commit Message Guidelines.
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• New tests
• [v] Build/CI related changes
• Documentation content changes
• Other (please describe)

What is the current behavior?

N/A

What is the new behavior?

N/A

Does this PR introduce a breaking change?

• Yes
• [v] No

Other information

[ricellis]

Thank you for proposing this change.
At the moment the existing eslint-plugin-header is working for our case so we are not inclined to make an unnecessary change at this time.
However, we will definitely keep your plugin in mind if we need to change in the future though - thanks!

[tonyganchev]

@ricellis I just realized I did not clear out this hack from the PR. This is the immediate benefit of not using the original project.

[tonyganchev]

Thank you for proposing this change. At the moment the existing eslint-plugin-header is working for our case so we are not inclined to make an unnecessary change at this time. However, we will definitely keep your plugin in mind if we need to change in the future though - thanks!

Thanks, makes sense. Please take a look at the comment above - the ugly hack that was needed so that eslint-plugin-header is no longer needed but I forgot to remove it in this PR.