fix(workflow): Stale needs more Operations

The last run used 4 operations and did not even post a
comment. So raise this to 5 (from 2).

Author: ChristianTackeGSI

.github/workflows/stale.yml

@@ -21,4 +21,4 @@ jobs:
           days-before-stale: 365
           days-before-close: -1
           ascending: true
-          operations-per-run: 2
+          operations-per-run: 5