fix workflow yml

Author: karissarjacobsen

.github/workflows/dotnet.yml

@@ -14,9 +14,9 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Setup .NET
-      uses: actions/setup-dotnet@v2
+      uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: 8.0.x
+        dotnet-version: '8.0.x'
     - name: setup-msbuild
       uses: microsoft/[email protected]
     - name: Restore dependencies