Update the build.yml file to match the new release branch convention

.github/workflows/build.yml

@@ -2,10 +2,10 @@ name: build
 
 on:
   push:
-    branches: [ dev, rel/* ]
+    branches: [ dev, release/* ]
     tags: [ '*' ]
   pull_request:
-    branches: [ dev, rel/* ]
+    branches: [ dev, release/* ]
   workflow_dispatch:
 
 env:
@@ -145,7 +145,7 @@ jobs:
     if: |
       (github.ref_name == github.event.repository.default_branch ||
        startsWith(github.ref, 'refs/heads/dev') ||
-       startsWith(github.ref, 'refs/heads/rel/') ||
+       startsWith(github.ref, 'refs/heads/release/') ||
        startsWith(github.ref, 'refs/tags/'))
     steps:
     - name: Download packages