build(deps): bump Serilog from 2.9.0 to 2.10.0 (#582)

Bumps [Serilog](https://github.com/serilog/serilog) from 2.9.0 to 2.10.0.
- [Release notes](https://github.com/serilog/serilog/releases)
- [Changelog](https://github.com/serilog/serilog/blob/dev/CHANGES.md)
- [Commits](serilog/serilog@v2.9.0...v2.10.0)

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

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

src/Splat.Serilog/Splat.Serilog.csproj

@@ -9,7 +9,7 @@
     <PackageId>Splat.Serilog</PackageId>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Serilog" Version="2.9.0" />
+    <PackageReference Include="Serilog" Version="2.10.0" />
     <PackageReference Include="System.Collections.Immutable" Version="1.7.1" />
   </ItemGroup>
   <ItemGroup>