Bump actions/setup-dotnet from 3 to 4

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) --- updated-dependencies: - dependency-name: actions/setup-dotnet dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/build.yaml

@@ -18,7 +18,7 @@ jobs:
  - uses: actions/checkout@v4
 
  - name: Set up .NET
- uses: actions/setup-dotnet@v3
+ uses: actions/setup-dotnet@v4
 
  - name: Restore
  run: dotnet restore