Bump Gremlin.Net from 3.7.2 to 3.7.3

Bumps [Gremlin.Net](https://github.com/apache/tinkerpop) from 3.7.2 to 3.7.3.
- [Changelog](https://github.com/apache/tinkerpop/blob/master/CHANGELOG.asciidoc)
- [Commits](apache/tinkerpop@3.7.2...3.7.3)

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

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

Author: dependabot[bot]

src/JanusGraph.Net/JanusGraph.Net.csproj

@@ -25,7 +25,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All" />
-    <PackageReference Include="Gremlin.Net" Version="3.7.2" />
+    <PackageReference Include="Gremlin.Net" Version="3.7.3" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\JanusGraph logomark color RGB.png" Pack="true" PackagePath="\" />