[skip ci] Adjust merge criteria for translation PRs

.github/mergify.yml

@@ -1,9 +1,10 @@
 pull_request_rules:
   - name: Automatically merge translations
     conditions:
-      - "author=weblate"
+      - "author = weblate"
       - "-conflict"
-      - "current-day-of-week=Sat"
+      - "current-day-of-week = Sat"
+      - "created-at >= 1 day ago"
     actions:
       merge:
         method: squash