build(deps): bump Xunit.SkippableFact from 1.3.12 to 1.4.13 (#539)

Bumps [Xunit.SkippableFact](https://github.com/AArnott/Xunit.SkippableFact) from 1.3.12 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] <[email protected]>

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

Author: dependabot-preview[bot]

test/Sentry.Tests/Sentry.Tests.csproj

@@ -18,7 +18,7 @@
   </PropertyGroup>
 
   <ItemGroup Condition="$(TargetFramework.StartsWith('net4'))">
-    <PackageReference Include="Xunit.SkippableFact" Version="1.3.12" />
+    <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
   </ItemGroup>
 
 </Project>