Workflows: Remove needs-rebase label when PR is closed

Author: armsnyder

.github/workflows/issue-or-pr-closed.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        labels: ['needs-triage', 'waiting-response']
+        labels: ['needs-triage', 'waiting-response', 'needs-rebase']
     steps:
       - name: Remove ${{ matrix.labels }} label
         uses: actions-ecosystem/action-remove-labels@v1