apache-camel - Source tarball should have apache-camel as name

I created the RC2 release and the tarballs got created, but they are
now located at a different path:

https://repository.apache.org/content/repositories/orgapachecamel-1594/org/apache/camel/camel/4.0.0-RC2/

With previous releases, they used to be located at:

https://repository.apache.org/content/repositories/orgapachecamel-1594/org/apache/camel/apache-camel/4.0.0-RC2/

(Note the path element `camel/camel` vs `camel/apache-camel`).