add backport rules for v1.4.x and v2.2.x (#1085)

Author: crodriguezvega

.github/mergify.yml

@@ -42,6 +42,14 @@ pull_request_rules:
       backport:
         branches:
           - release/v1.3.x
+  - name: backport patches to v1.4.x branch
+    conditions:
+      - base=main
+      - label=backport-to-v1.4.x
+    actions:
+      backport:
+        branches:
+          - release/v1.4.x          
   - name: backport patches to v2.0.x branch
     conditions:
       - base=main
@@ -57,7 +65,15 @@ pull_request_rules:
     actions:
       backport:
         branches:
-          - release/v2.1.x          
+          - release/v2.1.x
+  - name: backport patches to v2.2.x branch
+    conditions:
+      - base=main
+      - label=backport-to-v2.2.x
+    actions:
+      backport:
+        branches:
+          - release/v2.2.x            
   - name: backport patches to v3.0.x branch
     conditions:
       - base=main