feat(tools): add python script used for migrating to github issues

[Swiftb0y]

@ywwg requested we include the source for the import tool in our source tree.

[daschuer]

The pre-commit issue is s false positive.

[Swiftb0y]

I'd also wait with merging until we actually did the import. Its likely I'll still have to make some adjustments to the script.

[mYnDstrEAm]

Is this specific to mixxx? If not, create another separate repo for it so other Launchpad repos can find and use it too. Also see #10952

[Holzhaus]

Is this specific to mixxx? If not, create another separate repo for it so other Launchpad repos can find and use it too. Also see #10952

It is kind of specific because it hardcodes the term "Mixxx" in various locations, maps certain Launchpad usernames to GitHub usernames, etc.

I have no intention to spend any more time on this, but the code is open source and distributed under the terms of the GPL. Feel free to modify it and put into a separate repository if you want.

[github-actions[bot]]

This PR is marked as stale because it has been open 90 days with no activity.

[daschuer]

Do we want to merge this now? It is for documentation purpose only, so it should be safe.

[Holzhaus]

The pre-commit checks fail. If we merge this, every non-PR CI build will probably also fail.

[Swiftb0y]

squashed the fixup commits, rebased on latest 2.3 and fixed pre-commit

[daschuer]

Thank you @Holzhaus Can this be merged now?

[Holzhaus]

Yup