Merge pull request #557 from fluxcd/ci-changes

ci: run build workflow on release branches

Author: aryan9600

.github/workflows/build.yaml

@@ -2,8 +2,7 @@ name: build
 on:
   pull_request:
   push:
-    branches:
-    - main
+    branches: [ 'main', 'release/**' ]
 
 permissions:
   contents: read # for actions/checkout to fetch code