Update xunit.runner.visualstudio to 3.1.0

---
updated-dependencies:
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

by-language/csharp-efcore/demo.csproj

@@ -13,7 +13,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.4" />
   </ItemGroup>