In job-dsl, the Bitbucket trigger is specified like this:

triggers {
    bitbucketPush()
}

How to specify the overrideUrl?
This information should be added to https://plugins.jenkins.io/bitbucket/

Update: Figured it out. Someone could add this to the linked plugin page.

triggers{
  bitbucketPush{
    overrideUrl('https://bitbucket.org/blabla/hello-world-server')
  }
}