Use setup-dotnet v2

Author: danipen

.github/workflows/dotnet.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Setup NuGet
       uses: NuGet/[email protected]
     - name: Setup .NET
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v2
       with:
           dotnet-version: 6.0.x
     - name: Restore dependencies