Added test path, update dotnet version in CI config

Issue #34

Author: vertigra

.github/workflows/dotnet-desktop.yml

@@ -56,8 +56,8 @@ jobs:
                              # https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idruns-on
 
     env:
-      Solution_Name: XpadControl.sln                         # Replace with your solution name, i.e. MyWpfApp.sln.
-      Test_Project_Path: XpadControl.Interfaces.Tests\XpadControl.Interfaces.Tests.csproj                 # Replace with the path to your test project, i.e. MyWpfApp.Tests\MyWpfApp.Tests.csproj.
+      Solution_Name: XpadControl.sln                         
+      Test_Project_Path: XpadControl.Interfaces.Tests\XpadControl.Interfaces.Tests.csproj, XpadControl.Linux.Services.Test\XpadControl.Linux.Services.Test.csproj, XpadControl.Windows.Services.Test\XpadControl.Windows.Services.Test.csproj
 
 
     steps:
@@ -70,7 +70,7 @@ jobs:
     - name: Install .NET Core
       uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: 7.0.x
 
     # Add  MSBuild to the PATH: https://github.com/microsoft/setup-msbuild
     - name: Setup MSBuild.exe