Bump the dotnet group with 1 update (#47502)

Bumps xunit.runner.visualstudio from 3.1.2 to 3.1.3

---
updated-dependencies:
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/core/testing/snippets/order-unit-tests/csharp/XUnit.TestProject/XUnit.Project.csproj

@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.2">
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.3">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>