GitHub workflow to cleanup template after repository creation

[bnorm]

The Kotlin Advent of Code template project has this really cool GitHub workflow which edits the project files after the new repository is created and deletes itself when complete.

There are a lot of files that need to be updated when a compiler plugin project is created. It would be nice if a workflow could handle many of these automatically. For example:

• Files within compiler-plugin need to be renamed and relocated based on the desired package and plugin name.
• Files within gradle-plugin need to be renamed and relocated as well.
• Both files in META-INF/services need to be updated based on class names and package.
• The group ID in the root build.gradle.kts file needs to be updated.
• The plugin name and implementation class in gradle-plugin/build.gradle.kts needs to be updated.
• And probably lots more...

Since there will be multiple pieces of information that need to be provided to correctly update all of these files, maybe a manually triggered workflow would work better?

[kyay10]

The IntelliJ Platform Plugin Template has a similar workflow, so it might be useful as inspiration