conflicting GAV of `maven-dependency-plugin` in `clas12detector-alert`

[c-dilks]

[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.jlab.clas12.detector:clas12detector-alert:jar:13.0.2-SNAPSHOT
[WARNING] 'build.plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-dependency-plugin @ line 148, column 15
[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] 

[c-dilks]

Fixing in #688 (which already has plenty of scope creep)

[c-dilks]

FYI @mathieuouillon