Update cancel branches config

Author: ijjk

.github/workflows/cancel.yml

@@ -1,10 +1,11 @@
 name: Cancel
 on:
   pull_request_target:
-    branches-ignore:
+    branches:
       # don't run cancel job for branches named canary until
       # it no longer cancels the main canary branches jobs
-      - canary
+      - '**'
+      - '!canary'
     types:
       - edited
       - synchronize