Update build_publish.yml

Author: fletch3555

.github/workflows/build_publish.yml

@@ -7,13 +7,11 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: windows-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1
-      with:
-        dotnet-version: 3.1.101
+    - name: Add msbuild to PATH
+      uses: microsoft/setup-msbuild@v1.0.0
     - name: Build
       run: dotnet build --configuration Release
 #    - name: Test