Fix CI to use .NET 9

Author: MCGPPeters

.github/workflows/cd.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: '10.0.x'
+        dotnet-version: '9.0.x'
         dotnet-quality: 'preview'
     - name: Install WASM experimental workload
       run: dotnet workload install wasm-experimental wasm-tools