Bump Xunit.SkippableFact from 1.4.8 to 1.4.13 (#1327)

Bumps [Xunit.SkippableFact](https://github.com/AArnott/Xunit.SkippableFact) from 1.4.8 to 1.4.13.
- [Release notes](https://github.com/AArnott/Xunit.SkippableFact/releases)
- [Commits](https://github.com/AArnott/Xunit.SkippableFact/commits)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

test/PowerShellEditorServices.Test.E2E/PowerShellEditorServices.Test.E2E.csproj

@@ -13,7 +13,7 @@
     <PackageReference Include="OmniSharp.Extensions.LanguageClient" Version="0.17.2" />
     <PackageReference Include="xunit" Version="2.4.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.2" />
-    <PackageReference Include="Xunit.SkippableFact" Version="1.4.8" />
+    <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
   </ItemGroup>
 
   <ItemGroup>