Bump Gremlin.Net from 3.5.2 to 3.6.0

Bumps [Gremlin.Net](https://github.com/apache/tinkerpop) from 3.5.2 to 3.6.0.
- [Release notes](https://github.com/apache/tinkerpop/releases)
- [Changelog](https://github.com/apache/tinkerpop/blob/master/CHANGELOG.asciidoc)
- [Commits](apache/tinkerpop@3.5.2...3.6.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

src/JanusGraph.Net/JanusGraph.Net.csproj

@@ -25,7 +25,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1 " PrivateAssets="All"/>
-    <PackageReference Include="Gremlin.Net" Version="3.5.2" />
+    <PackageReference Include="Gremlin.Net" Version="3.6.0" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\JanusGraph logomark color RGB.png" Pack="true" PackagePath="\" />