Remove changelog gh action

[oscerd]

ASF doesn't allow it anymore. We need to find an official action for it

[orpiske]

Maybe this would do the trick: http://maven.apache.org/plugins/maven-changelog-plugin/

[oscerd]

I don't think it's really useful in this case, we need to have a look at gh issues and PR and the maven plugin is not for that.. We need to update the changelog by hand I guess.

[oscerd]

I think we can use milestones: I created this https://github.com/apache/camel-kafka-connector/milestone/3 for 0.8.0