Bump xunit.runner.visualstudio in /nuget/helpers/lib/NuGetUpdater

Bumps [xunit.runner.visualstudio](https://github.com/xunit/visualstudio.xunit) from 2.4.5 to 2.8.2.
- [Release notes](https://github.com/xunit/visualstudio.xunit/releases)
- [Commits](xunit/visualstudio.xunit@2.4.5...2.8.2)

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

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

nuget/helpers/lib/NuGetUpdater/Directory.Packages.props

@@ -34,7 +34,7 @@
     <PackageVersion Include="System.Text.RegularExpressions" Version="4.3.1" />
 
     <PackageVersion Include="xunit" Version="2.9.2" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="2.4.5" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />
   </ItemGroup>
 
 </Project>