The source tar.gz download looks fine to me, but the GitHub branch poms (e.g. https://github.com/apache/camel-kamelets/blob/0.6.x/pom.xml <https://github.com/apache/camel-kamelets/blob/0.6.x/pom.xml>) have version main-SNAPSHOT instead of 0.6.1-SNAPSHOT (or whatever is correct), and the dependencies in the kamelet yamls also have main-SNAPSHOT for the util version.
David Jencks