Bump microsoft/setup-msbuild from 2.0.0 to 3.0.0

Bumps [microsoft/setup-msbuild](https://github.com/microsoft/setup-msbuild) from 2.0.0 to 3.0.0.
- [Release notes](https://github.com/microsoft/setup-msbuild/releases)
- [Commits](microsoft/setup-msbuild@v2.0.0...v3.0.0)

---
updated-dependencies:
- dependency-name: microsoft/setup-msbuild
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -110,7 +110,7 @@ jobs:
     - name: Checkout CUPS sources
       uses: actions/checkout@v6
     - name: Configure CUPS
-      uses: microsoft/setup-msbuild@v2.0.0
+      uses: microsoft/setup-msbuild@v3.0.0
     - name: Install prerequisites
       run: cd vcnet; nuget restore cups.sln
     - name: Build CUPS