Update dependency xunit.v3.extensibility.core to 3.1.0 (#149)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/Serilog.Sinks.XUnit.Injectable/Serilog.Sinks.XUnit.Injectable.csproj

@@ -46,6 +46,6 @@
         <PackageReference Include="Soenneker.Extensions.ValueTask" Version="3.0.95" />
         <PackageReference Include="Soenneker.Utils.AtomicBool" Version="3.0.9" />
         <PackageReference Include="Soenneker.Utils.ReusableStringWriter" Version="3.0.5" />
-        <PackageReference Include="xunit.v3.extensibility.core" Version="3.0.1" />
+        <PackageReference Include="xunit.v3.extensibility.core" Version="3.1.0" />
     </ItemGroup>
 </Project>