Bump microsoft/setup-msbuild from 1.3 to 2

Bumps [microsoft/setup-msbuild](https://github.com/microsoft/setup-msbuild) from 1.3 to 2.
- [Release notes](https://github.com/microsoft/setup-msbuild/releases)
- [Changelog](https://github.com/microsoft/setup-msbuild/blob/main/building-release.md)
- [Commits](microsoft/setup-msbuild@v1.3...v2)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/dotnet.yml

@@ -19,7 +19,7 @@ jobs:
         dotnet-version: '6.0.x'
 
     - name: setup-msbuild
-      uses: microsoft/setup-msbuild@v1.3
+      uses: microsoft/setup-msbuild@v2
 
     - name: Setup NuGet.exe for use with actions
       uses: NuGet/[email protected]