Don't use main.yml since it has a limit of 20 jobs

.github/workflows/docker-OpenWrt.yml

@@ -2,8 +2,17 @@
 # there aren't any compatibility issues. Take a look at Docker/OpenWrt/README.md
 name: OpenWrt test
 
+# START OF COMMON SECTION
 on:
-    workflow_call:
+  push:
+    branches: [ 'master', 'main', 'release/**' ]
+  pull_request:
+    branches: [ '*' ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+# END OF COMMON SECTION
 
 jobs:
     build_library: