chore: mergify backport for v8.2.x (cosmos#5838)

Author: crodriguezvega

.github/mergify.yml

@@ -98,3 +98,11 @@ pull_request_rules:
       backport:
         branches:
           - release/v8.1.x
+  - name: backport patches to v8.2.x branch
+    conditions:
+      - base=main
+      - label=backport-to-v8.2.x
+    actions:
+      backport:
+        branches:
+          - release/v8.2.x