Mergify: configuration update

Author: mr-c

.mergify.yml

@@ -1,9 +1,21 @@
+pull_request_rules:
+  - name: For dependabot, automatic merge on approval and when when GitHub branch protection passes on main
+    conditions:
+      - "#approved-reviews-by>=1"
+      - base=main
+      - label=dependencies
+    actions:
+      merge:
+        method: merge
+        strict: false
+   
 pull_request_rules:
   - name: Automatic merge on approval and when when GitHub branch protection passes on main
     conditions:
       - "#approved-reviews-by>=1"
       - base=main
+      - label!=dependencies
     actions:
       merge:
         method: merge
-        strict: true
+        strict: smart