fix(workflows): update build.yml configuration

Author: dlidstrom

.github/workflows/build.yml

@@ -50,7 +50,7 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '8.0.x'
+          dotnet-version: '9.0.x'
 
       - name: Build package
         env: