chore(csharp): Bump xunit.runner.visualstudio from 3.1.4 to 3.1.5

---
updated-dependencies:
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

csharp/test/Apache.Arrow.Adbc.Tests.Drivers.BigQuery.csproj

@@ -8,7 +8,7 @@
      <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
      <PackageReference Include="System.Net.Http.WinHttpHandler" Version="8.0.2" Condition="'$(TargetFrameworkIdentifier)' == '.NETStandard'" />
      <PackageReference Include="xunit" Version="2.9.3" />
-     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4">
+     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
        <PrivateAssets>all</PrivateAssets>
        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      </PackageReference>