Update discussions.yml

Author: mvadari

.github/workflows/discussions.yml

@@ -13,7 +13,8 @@ permissions:
 env:
   STALE_DAYS: 1000 # Number of days without updates to consider a discussion stale
   WARNING_DAYS: 30 # Number of days to wait after warning before closing
-  WARNING_MESSAGE: |
+  WARNING_MESSAGE:
+    | # note: the marker is necessary for the script and should not be removed
     <!-- stale-discussion-warning -->
     This discussion has not been updated in over a year and will be closed in 30 days if there is no further activity.