ci: mergify v14 hotfix and develop backports

.mergify.yml

@@ -78,6 +78,26 @@ pull_request_rules:
         assignees:
           - "{{ author }}"
 
+  - name: backport to version-14-hotfix
+    conditions:
+      - label="backport version-14-hotfix"
+    actions:
+      backport:
+        branches:
+          - version-14-hotfix
+        assignees:
+          - "{{ author }}"
+
+  - name: backport to develop
+    conditions:
+      - label="backport develop"
+    actions:
+      backport:
+        branches:
+          - develop
+        assignees:
+          - "{{ author }}"
+
   - name: backport to version-13-pre-release
     conditions:
       - label="backport version-13-pre-release"