Update dotnet.yml

Remove the --no-build parameter - the Tests project does have to build actually

Author: dominikag2

.github/workflows/dotnet.yml

@@ -31,4 +31,4 @@ jobs:
     - name: Test
       run: |
         cd src/TrainingGuides.Web.Tests
-        dotnet test --no-build --verbosity normal
+        dotnet test --verbosity normal