add a stale bot to help manage needs info issues

Signed-off-by: Matthieu Gallien <matthieu_gallien@yahoo.fr>

.github/workflows/needsinfo.yml

@@ -0,0 +1,23 @@
+name: 'Close stale needs info issues'
+on:
+    schedule:
+        -   cron: '30 */8 * * *'
+
+jobs:
+    stale:
+        runs-on: ubuntu-latest
+        steps:
+            -   uses: actions/stale@v3
+                with:
+                    operations-per-run: 1500
+                    days-before-stale: 28
+                    days-before-close: 14
+                    days-before-pr-close: -1
+                    only-labels: 'needs info'
+                    exempt-issue-labels: 'bug'
+                    stale-issue-message: 'This issue has been marked as "needs info" 4 weeks ago.
+                                        Please take a look again and try to provide the information requested,
+                                        otherwise the issue will be automatically closed in 2 weeks. Thank you!'
+                    close-issue-message: "This bug report is getting automatically closed due to no answer
+                                          since the issue has been staled. Thank you!"
+                    exempt-all-pr-milestones: true