Add automation to flag PRs on areas without an active SIG/project

[joaopgrassi]

Fixes ##2834

Changes

This PR adds automation to flag and auto-close PRs with changes on semantic convention areas that do not have an active sig/project. It does so by:

• Getting all the changed files inside the model/ folder the PR is proposing
• Then check if there is an active sig/project for the modified areas
• If not, the PR is closed with the label triage:rejected:declined
• Maintainers/Approvers can bypass the check by adding the label triage:accepted:ready (if the PR gets closed, apply the label first and then re-opening the PR)

I decided to go with Javascript for the scripts as that seems to be the common pattern for it. I initially wanted to use github-script for the action, but decided against it because it just added complexity where not needed. Also, the way it is now I can use "some" Typescript features to easy the development part. Node 22+ has type stripping so at least we get some IDE help. Much better than bash scripts :D

This is how the comment will look like:

Merge requirement checklist

• CONTRIBUTING.md guidelines followed.
• Change log entry added, according to the guidelines in When to add a changelog entry.
  • If your PR does not need a change log, start the PR title with [chore]
• Links to the prototypes or existing instrumentations (when adding or changing conventions)

[jsuereth]

Nice work! one minor question

[jsuereth]

Are there other labels we have (other than ready) that would make us want to skip the check?

[joaopgrassi]

Not today, but I can add if you prefer a more explicit one for that purpose. Let me know!

[Copilot]

Pull Request Overview

This PR adds GitHub automation to automatically flag and close PRs that modify semantic convention areas without an active SIG/project, implementing the requirements outlined in issue #2834. The automation helps enforce contribution guidelines by preventing changes to unmaintained semantic convention areas while providing a bypass mechanism for maintainers.

Key changes:

• Adds GitHub workflow to automatically validate PR ownership for changes to model/ directory
• Implements TypeScript automation scripts to check for active SIG/project ownership of modified areas
• Updates issue management documentation to reflect new automated triage rules

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
issue-management.md	Updates triage documentation to include new automated checks for inactive areas
.github/workflows/check-changes-ownership.yml	Defines GitHub workflow to check PR ownership and validate changes
.github/scripts/triage/utils.ts	Provides utility functions for parsing area metadata and determining active areas
.github/scripts/triage/package.json	Package configuration for TypeScript automation scripts
.github/scripts/triage/check-changes-ownership.ts	Main automation script that validates PR ownership and auto-closes non-compliant PRs

Comments suppressed due to low confidence (1)

issue-management.md:1

• Corrected spelling of 'stablished' to 'established'.

# Issue and PR triage management

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: arminru / name: Armin Ruech (26992c4)
• ✅ login: joaopgrassi / name: Joao Grassi (1168244, 1c19595, 232c33d, 31d83a4, 4f97471, 6e03e8f, afcf22b, c0c9f54, c428fb7, d4c897b, e9f89d6, f46e1ac)