add powershell to the dependency stack

.gitea/workflows/msbuild.yaml

@@ -18,13 +18,13 @@ jobs:
         with:
           dotnet-version: '7.0.x'
       
+      - name: Install PowerShell
+        run: dotnet tool install --global PowerShell
+                
       - name: Where Am I
         shell: bash
         working-directory: ${{runner.workspace}}
-        run: pwd && ls -l && dotnet --info
-      
-#      - name: Install dependencies
-#        run: dotnet add package Newtonsoft.Json --version 12.0.1
+        run: pwd && ls -l && dotnet --info && pwsh --version
         
       - name: Start Web
         shell: bash