added single quotes

Author: Petr Sramek

.github/actions/build/action.yml

@@ -47,7 +47,7 @@ inputs:
 runs:  
   using: "composite"
   steps:
-    - name: Checkout ${{ github.head_ref || github.ref }}
+    - name: 'Checkout ${{ github.head_ref || github.ref }}'
       uses: actions/checkout@v4
 
     - name: 'Setup .NET ${{ inputs.dotnet_sdk_version }}'