CI improvements

[AndWeHaveAPlan]

• llvm artifacts search, download and extract now in get-llvm action
• get-emsdk action - clone, install, activate emsdk, so we don't need to build revive-builder for this
• switch workflows to new actions
• concurrency for remaining workflows (cancel run if new run is triggered)
• target_commitish for main release, fixes release commit
• Run release workflow in PR without creating a release if PR is labeled with release-test

[AndWeHaveAPlan]

fork run
fork published release

[athei]

Can't mark the line in the script. But this isn't correct, right? This should be expanded to the actual arch? In the script it uses " which might cause this?

Another question: The release-test lable only does something in case you actually also bump the version side the PR, right?

[AndWeHaveAPlan]

Can't mark the line in the script. But this isn't correct, right? This should be expanded to the actual arch? In the script it uses " which might cause this?

Its because the job is skipped, so gh does not resolve matrix
Just removed arch part, as gh automatically expand this on job run, like for test-revive-wasm (*)

Another question: The release-test lable only does something in case you actually also bump the version side the PR, right?

Yes, for PR's workflow will run like a real release, except for the creation part

[athei]

Thanks. Let's have @xermicus have a look before merging.

[xermicus]

LGTM