chore: Run all tests per PR unless skipped

[mutahhir]

Description

Enable PR checks to be run for all PRs, since we now have the merge queue. This prevents us from merging things that break the release pipeline.

[ansgarm]

I think that would still not change how the merge queue works 🤔

As far as I understand it, you need to explicitly define what to run in merge queues.
For example we currently have this:

terraform-cdk/.github/workflows/pr-unit.yml

Lines 3 to 4 in 9f70e6f

	merge_group:
	types: [checks_requested]

(and we'd need that for all kinds of checks that we run on PRs)

edit: Or does a merge queue run PR checks by default?

[mutahhir]

I think that would still not change how the merge queue works 🤔

As far as I understand it, you need to explicitly define what to run in merge queues. For example we currently have this:

terraform-cdk/.github/workflows/pr-unit.yml

Lines 3 to 4 in 9f70e6f

	merge_group:
	types: [checks_requested]

(and we'd need that for all kinds of checks that we run on PRs)

edit: Or does a merge queue run PR checks by default?

Yeah, just testing for now. I think since the rules are for branch protections, the merge queue should not be able to merge to that branch, but let's see.

[github-actions]

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