gateleen-hook-js: Malformed maven project model

[hiddenalpha]

maven reports warnings. Looks like gateleen-hook-js has unreliable build.

[WARNING]
[WARNING] Some problems were encountered while building the effective model for org.swisspush.gateleen:gateleen-hook-js:jar:2.1.33
[WARNING] 'build.plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-dependency-plugin @ line 130, column 21
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-jar-plugin is missing. @ line 29, column 21
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]

No unexpected behavior observed so far.