Hi Michael,
Unfortunately I somehow missed this thread. So I didn't reply when you sent a request for plugin adoption.
Unfortunately it is not enough to send email, there should be an effort to reach out to the maintainer (e.g. by CCing him/her or pinging in GitHub).
I will do it in this case (already pinged in GitHub), but IIUC we cannot transfer ownership immediately. We also need you Jenkins JIRA ID in addition to GitHub
Best regards,
Oleg