added checkout of target branch for deployment

Author: petesramek

.github/workflows/release.yml

@@ -189,6 +189,8 @@ jobs:
     steps:
       - name: 'Checkout ${{ github.head_ref || github.ref }}'
         uses: actions/checkout@v5
+        with:
+          ref: ${{ github.base_ref }}
 
       - name: Setup .NET
         uses: actions/setup-dotnet@v5