Fix the github workflow (experiment #3)

Author: Timwi

.github/workflows/build.yml

@@ -37,7 +37,13 @@ jobs:
           dotnet-version: '8.x'
           dotnet-quality: 'ga'
 
-      - name: dotnet test
+      - name: dotnet msbuild Src
+        run: dotnet msbuild /t:restore /p:Configuration=Release Src
+
+      - name: dotnet msbuild Tests
+        run: dotnet msbuild /t:restore /p:Configuration=Release Tests
+
+      - name: dotnet test Tests
         run: dotnet test Tests
 
       - name: "dotnet pack: ${{ env.VER_STR }}"