Add missing actions: write permission to close-stale workflow

[Copilot]

Summary

Added the missing actions: write permission to the .github/workflows/close-stale.yml workflow file that uses actions/stale@v10.

Changes

The actions/stale action requires the actions: write permission because it deletes its old cache before saving a new one. This permission was missing from the workflow's permissions block.

The permission has been added in the correct order within the permissions block:

• After contents: read (inherited from workflow-level)
• Before issues: write
• Before pull-requests: write

The permission includes a trailing comment that matches the style of other permissions in the file:

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

Related Issue

Fixes the issue by ensuring the stale action has the necessary permissions to function correctly and manage its cache.

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 #56

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