Update mergify.yml

SteveMacenski · web-flow · commit 14a63c1fb1a9 · 2022-06-24T14:13:13.000-07:00
diff --git a/.github/mergify.yml b/.github/mergify.yml
@@ -1,4 +1,13 @@
 pull_request_rules:
+  - name: backport to humble at reviewers discretion
+    conditions:
+      - base=main
+      - "label=backport-humble"
+    actions:
+      backport:
+        branches:
+          - humble
+
   - name: backport to galactic at reviewers discretion
     conditions:
       - base=main
