build(deps): bump netty-handler in /benchmark (OpenFeign#2095)

Bumps [netty-handler](https://github.com/netty/netty) from 4.1.93.Final to 4.1.94.Final.
- [Commits](netty/netty@netty-4.1.93.Final...netty-4.1.94.Final)

---
updated-dependencies:
- dependency-name: io.netty:netty-handler
  dependency-type: direct:production
...

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Co-authored-by: Marvin Froeder <velo@users.noreply.github.com>