Publish snapshots on Apache snapshots repository of the kamelet catalog

[apupier]

This would allow consumer as Camel language Server to integrate it.

cc @nicolaferraro

[oscerd]

We can add a job on ASF CI for this or a GH Action too. Let me have a look.

[oscerd]

If @nicolaferraro is not working on this already obviously

[oscerd]

https://repository.apache.org/content/repositories/snapshots/org/apache/camel/kamelets/

The GH Action seems to have troubles of configuration on this repo, so I've done a Jenkins pipeline here:

https://ci-builds.apache.org/job/Camel/job/Camel-Kamelets%20Daily%20JDK11/

This will run every day and it is already working running by hands:

https://repository.apache.org/content/repositories/snapshots/org/apache/camel/kamelets/