chore(deps): update dependency serilog.sinks.http to v9 (#129)

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

Author: renovate[bot]

serilog/serilog-example.csproj

@@ -7,6 +7,6 @@
     <PackageReference Include="Bogus" Version="35.5.0" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="8.0.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="5.0.1" />
-    <PackageReference Include="Serilog.Sinks.Http" Version="8.0.0" />
+    <PackageReference Include="Serilog.Sinks.Http" Version="9.0.0" />
   </ItemGroup>
 </Project>