Update Github Actions to use Node 20 runtime

[stevejalim]

One-line summary

Update our GHAs to use the latest node-20-based workflow, as the node-16 ones are deprecated and we don't want to be caught out if they stop working.

Issue / Bugzilla link

Resolves #14147

Testing

Some of these we can run directly from the branch, but really we should just merge and see how they are. The only that looks like it might need a bit of tuning is upload_artifact and we'll see that as soon as this PR hits main

[alexgibson]

Code changes seem fine. My only question would be if we should split this up into multiple things to update. But if we're OK with just seeing how things go and rolling something back if it goes south, that sounds low risk enough to me. r+

[pmac]

🎁

[janbrasna]

@stevejalim Yup the upload-artifact still yields warnings e.g. run:8456030154 — what was the problem with it again?

I see it as checked off in #14147 but not changed in the PR:

bedrock/.github/workflows/integration_tests.yml

Lines 101 to 107 in 0a993cb

	- name: Store artifacts
	if: always()
	uses: actions/upload-artifact@v3
	with:
	name: test-results
	path: results-${{github.run_id}}-${{matrix.label}}
	if-no-files-found: ignore # this avoids a false "Warning" if there were no issues

[stevejalim]

@janbrasna IIRC I backed out the change pre-push for upload-artifact because I didn't want to risk breaking our integration tests (which upload screenshots of failures) and v4 chnages behaviours surrounding same-named files compared to v3.

I've unticked it from #14147 for now and will re-open that ticket as it has two things to deal with.

Thanks for the poke!