Make the Camel version visible on Quarkus Platform

### Describe the feature here

It would be great if users of Quarkus Platfrom and build tools (including code.quarkus.io) could better see what is the version of Camel used in the given release of Camel Quarkus.

* We could either smuggle it into the title of the extension in quarkus-extension.yaml or we could perhaps ask Quarkus team to create some generic field in quarkus-extension.yaml for this kind of info.
* It would be great if the Camel version information would also be visible on the Quarkus Platform compatibility matrix page I asked for when we discussed the new Platform BOM versioning scheme.