Add missing actions: write permission to stale workflow

[Copilot]

Summary

Adds the actions: write permission to the stale job in the issue management workflow file.

Details

The actions/stale action requires the actions: write permission because it deletes its old cache before saving a new one. Without this permission, the action may fail or not function optimally.

The permission has been added to .github/workflows/issue-management-stale-action.yml in the correct order:

• After contents: read
• Before issues: write and pull-requests: write

The change includes a trailing comment explaining the reason for the permission, consistent with the existing comment style in the workflow file.

Testing

• Validated YAML syntax is correct
• Verified the permission is placed in the proper location within the permissions block

Fixes the issue identified in the original request to ensure the stale action has all necessary permissions to function correctly.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add missing actions/stale permission</issue_title>
<issue_description>Check if any workflow jobs are using actions/stale.

If so, make sure that the permissions block for that job contains

actions: write

If any of the other permissions lines have trailing comments, then add a trailing comment for this one too:

actions: write # because actions/stale deletes its old cache before saving new one

Place this new permission in a specific order within the permissions, directly before both:

issues: write
pull-requests: write

(which implicitly means after contents: read)</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #120

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