Add stale workflow

.github/workflows/issue-management-feedback-label.yml

@@ -0,0 +1,21 @@
+name: Issue management - remove needs feedback label
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  issue_comment:
+    if: >
+      contains(github.event.issue.labels.*.name, 'needs author feedback') &&
+      github.event.comment.user.login == github.event.issue.user.login
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Remove label
+        env:
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh issue edit --remove-label "needs author feedback" $ISSUE_NUMBER

.github/workflows/issue-management-stale-action.yml

@@ -0,0 +1,25 @@
+name: Issue management - run stale action
+
+on:
+  schedule:
+    # hourly at minute 23
+    - cron: "23 * * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v8
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-stale: 7
+          days-before-close: 7
+          only-labels: "needs author feedback"
+          stale-issue-message: >
+            This has been automatically marked as stale because it has been marked
+            as needing author feedback and has not had any activity for 7 days.
+            It will be closed if no further activity occurs within 7 days of this comment.
+          stale-pr-message: >
+            This has been automatically marked as stale because it has been marked
+            as needing author feedback and has not had any activity for 7 days.
+            It will be closed if no further activity occurs within 7 days of this comment.