Update build-and-publish.yml

Author: runceel

.github/workflows/build-and-publish.yml

@@ -14,7 +14,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 3.1.301
+        dotnet-version: 3.1.402
     - name: Setup MSBuild.exe
       uses: warrenbuckley/Setup-MSBuild@v1
     - name: Update version number