chore: Bump xunit.runner.visualstudio from 2.8.2 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-major
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.5
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.5
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.5
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.5
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.5
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

samples/Basic/FunctionalStateMachine.Samples/FunctionalStateMachine.Samples.csproj

@@ -12,7 +12,7 @@
         <PackageReference Include="JunitXml.TestLogger" Version="8.0.0"/>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1"/>
         <PackageReference Include="xunit" Version="2.9.3"/>
-        <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2"/>
+        <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5"/>
     </ItemGroup>
 
     <ItemGroup>