CI: automatically lock old discussions (#1033)

.github/workflows/gh-lock-issues.yml

@@ -8,6 +8,7 @@ on:
 permissions:
   issues: write
   pull-requests: write
+  discussions: write
 
 jobs:
   action:
@@ -16,15 +17,25 @@ jobs:
       - uses: dessant/lock-threads@v5
         with:
           github-token: ${{ github.token }}
+
           issue-inactive-days: '30'
           issue-comment: |
             ## :lock: Inactive issue lock
             This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
 
             _Comment generated by the [${{ github.workflow }}](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}/attempts/${{ github.run_attempt }}) workflow._
+
           pr-inactive-days: '30'
           pr-comment: |
             ## :lock: Inactive pull request lock
             This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
 
             _Comment generated by the [${{ github.workflow }}](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}/attempts/${{ github.run_attempt }}) workflow._
+
+          discussion-inactive-days: '90'
+          exclude-any-discussion-labels: 'ongoing'
+          discussion-comment: |
+            ## :lock: Inactive discussion lock
+            This discussion has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
+
+            _Comment generated by the [${{ github.workflow }}](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}/attempts/${{ github.run_attempt }}) workflow._