Addition of generic workflows from ACCESS-NRI/access-om2-configs

[CodeGat]

This PR moves the deleted workflows from https://github.com/ACCESS-NRI/access-om2-configs/pull/117/files into this repo, references the newly-moved workflows, fixes some bugs, and adds a fresh coat of paint.

In this PR:

• Addition of pr-* and schedule-* workflows from Removal of CI/CD Infrastructure access-om2-configs#117 in 13cd827
• Addition of parse-ci-config action, also in 13cd827
• Generification of the above workflows - for those changes see https://github.com/ACCESS-NRI/model-config-tests/pull/24/files/13cd82771a4a68e6f93397c9be4725a66ea4cac2..c9d618448dc5ac7f3aca131f81c6cd416bce1d7d, but they include:
  • Replacing old run: gh pr comment ... commands with uses: access-nri/actions/.github/actions/pr-comment@main actions
  • Removing unneeded checkouts and env: sections
  • Renaming of generate-initial-checksums.yml -> generate-checksums.yml in b87ed06
  • Renaming of config-pr-checks.yml to test-repro.yml in 9b5645b and removing the model-name input
  • Adding validation to the config/ci.json, just in case, in 1d6a172
  • And fixing of a caching bug from Package model-config-tests #22 in 76157f8
• README.md: new reusable workflows
• CI.yml: Ignore running checks on PRs that modify CI/CD and some other supplementary files

References #23

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 14.44%. Comparing base (9d3c1b1) to head (c9d6184).
Report is 1 commits behind head on main.

❗ Current head c9d6184 differs from pull request most recent head 59da225

Please upload reports for the commit 59da225 to get more accurate results.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #24   +/-   ##
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  Coverage   14.44%   14.44%           
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  Files          11       11           
  Lines         547      547           
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  Hits           79       79           
  Misses        468      468           

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[jo-basevi]

Changes look good! I've added a few minor comments.

I might update the how to run tests manually part of the readme, to use virtual environments (so to not install to local directory) and to not use payu modules (as its installed as part of model-config-tests). I can create a separate PR for that section, or add a commit to this one?

[CodeGat]

@jo-basevi feel free to commit to this one if it's related :)

[jo-basevi]

LGTM