(Full) YAML support

[sftim]

Describe the enhancement
Allow use of YAML as the format for GitHub Actions workflows. Any valid document that can be expressed in YAML 1.x (pick a version you want to support) should be accepted if a conformant YAML implementation converts it to a JSON document, and that JSON document is equal to the transformation result of a “GitHub-flavored YAML” document that GitHub Actions does accept.

Code Snippet
not applicable

Additional information
Prompted by a comment that GitHub Actions doesn't yet support YAML, just a private subset.

NOTE: if the feature request has been agreed upon then the assignee will create an ADR. See docs/adrs/README.md

[nikola-jokic]

Hi @sftim,

This enhancement is added to the board.

[github-actions]

This issue is stale because it has been open 365 days with no activity. Remove stale label or comment or this will be closed in 15 days.

[lucasfcnunes]

@nikola-jokic was this enhancement dropped?

[nikola-jokic]

Could you please submit it to the GitHub Community Support Forum? This feature would require changes to the platform overall, so submitting this issue there would help route the problem to the correct team.

[lucasfcnunes]

Could you please submit it to the GitHub Community Support Forum? This feature would require changes to the platform overall, so submitting this issue there would help route the problem to the correct team.

Done! https://github.com/orgs/community/discussions/118688