Bump microsoft/setup-msbuild from 2 to 3 (#1271)

Bumps [microsoft/setup-msbuild](https://github.com/microsoft/setup-msbuild) from 2 to 3.
- [Release notes](https://github.com/microsoft/setup-msbuild/releases)
- [Commits](https://github.com/microsoft/setup-msbuild/compare/v2...v3)

---
updated-dependencies:
- dependency-name: microsoft/setup-msbuild
  dependency-version: '3'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/bsc-tests-windows.yml

@@ -31,7 +31,7 @@ jobs:
         Copy-Item -Path .\pkg\share -Destination c:\vcpkg\installed\x64-windows-custom -Recurse -Force
         cd ../../
     - name: Setup MSBuild
-      uses: microsoft/setup-msbuild@v2
+      uses: microsoft/setup-msbuild@v3
       with:
         msbuild-architecture: x64
     - name: Build and run bsc_event test