Remove duplicated permissions block in build.yml

Author: nmburgan

.github/workflows/build.yml

@@ -2,7 +2,7 @@
 name: Build puppet-runtime
 
 permissions:
-  contents: read
+  contents: read # minimal required permissions to clone repo
 
 on:
   workflow_dispatch:
@@ -29,9 +29,6 @@ on:
         type: boolean
         default: false
 
-permissions:
-  contents: read # minimal required permissions to clone repo
-
 jobs:
   build:
     if: ${{ github.event.inputs.use_dev == 'false' }}