vertx-rxjava3 support

[Noonlord]

Is your feature request related to a problem? Please describe.

As far as I can see from supported libraries document, vertx-rxjava2 is supported but vertx-rxjava3 is not. This results in disconnected/missing spans.

Describe the solution you'd like

I would like to see support for vertx-rxjava3 in future.

Describe alternatives you've considered

No response

Additional context

Sorry if this is not up to standards for feature requests. I would also gladly try any suggestions if there is any.

[jaydeluca]

Hey @Noonlord, you are in the right place to request something like this. We'd welcome a contribution for this.