Bump actions/setup-dotnet from 3 to 4 (#20)

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 3 to 4.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](actions/setup-dotnet@v3...v4)

.github/workflows/msi-build.yml

@@ -21,7 +21,7 @@ jobs:
         fetch-depth: 0
 
     - name: Setup .NET 6
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: 6.0.x