Merge pull request #35 from SixLabors/dependabot/github_actions/actions/setup-dotnet-3

Bump actions/setup-dotnet from 2 to 3

.github/workflows/build-and-test.yml

@@ -52,7 +52,7 @@ jobs:
           restore-keys: ${{ runner.os }}-nuget-
 
       - name: DotNet Setup
-        uses: actions/setup-dotnet@v2
+        uses: actions/setup-dotnet@v3
         with:
           dotnet-version: |
             6.0.x