Bump Serilog from 3.0.1 to 3.1.1

Bumps [Serilog](https://github.com/serilog/serilog) from 3.0.1 to 3.1.1.
- [Release notes](https://github.com/serilog/serilog/releases)
- [Commits](serilog/serilog@v3.0.1...v3.1.1)

---
updated-dependencies:
- dependency-name: Serilog
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

OctaneTester/OctaneTester.csproj

@@ -14,7 +14,7 @@
 
     <ItemGroup>
       <PackageReference Include="Serilog.Extensions.Logging" Version="7.0.0" />
-      <PackageReference Include="Serilog" Version="3.0.1" />
+      <PackageReference Include="Serilog" Version="3.1.1" />
       <PackageReference Include="Serilog.Sinks.Async" Version="1.5.0" />
       <PackageReference Include="Serilog.Sinks.Console" Version="4.1.0" />
       <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />