Bump microsoft/setup-msbuild from 2 to 3 (#217)

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

Author: dependabot[bot]

.github/workflows/dotnet.yml

@@ -21,7 +21,7 @@ jobs:
       with:
         fetch-depth: 0
     - name: Setup .NET
-      uses: microsoft/setup-msbuild@v2
+      uses: microsoft/setup-msbuild@v3
     - name: C# problem matcher
       run: |
         Invoke-WebRequest "https://raw.githubusercontent.com/actions/setup-dotnet/main/.github/csc.json" -OutFile "csc.json"

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
       with:
         fetch-depth: 0
     - name: Setup .NET
-      uses: microsoft/setup-msbuild@v2
+      uses: microsoft/setup-msbuild@v3
     - name: Add Packages
       run: |
         dotnet restore