Changing path based labels to use Github Actions

[ekohl]

In my ongoing quest to drop the Ruby-based PRProcessor I’m starting the next bit:

Drop path based labels

To replace the functionality I’ve opened two PRs:

Fixes #28380 - Use Github Actions for path based labels

Use Github Actions to label based on paths

An example of how it looks like:

Test labels

Unless there are objections I’ll merge this next week

[ekohl]

Since @mmoll merged the core PRs I’ve merged and deployed the PR processor update.

[ekohl]

It looks like there’s a limitation I wasn’t aware of. Looks like the workflow doesn’t work on forks. Essentially this is always our workflow so that’s a blocker for us.

starter-workflow template gives `Resource not accessible by integration`

I’m going to look at alternatives but perhaps we need to bring this back in our old bot in the mean time.

[ekohl]

Revert "Fixes #28380 - Use Github Actions for path based labels"

Revert "Refs #28380 - Use Github Actions for path based labels"

Will revert the change in PR Processor as well.