Update stale.yml: Unify "needs info" handling

Unifies stale handling of bug tagged Issues with other Nextcloud repos (e.g. server and android).

Signed-off-by: Josh Richards <josh.t.richards@gmail.com>

.github/workflows/stale.yml

@@ -13,7 +13,7 @@ jobs:
                     days-before-stale: 28
                     days-before-close: 14
                     days-before-pr-close: -1
-                    only-labels: 'bug'
+                    only-labels: 'bug,need info'
                     exempt-issue-labels: 'approved'
                     stale-issue-message: 'This bug report did not receive an update in the last 4 weeks.
                                         Please take a look again and update the issue with new details,