Here’s my reasoning here:
The Bechdel test is referring to women in movies being reduced to accessories for male characters.
Maz is not a human female. Maz, even if portrayed as feminine, is not going to be viewed in any way as a human female will be. She is not subject to the life of a human female, is not viewed by humans as a human female is viewed or treated how a human female is treated.
Yes, her voice is played by a female actor, but would you say a conversation between Doctor Beverly Crusher and the Enterprise Computer (voiced by the female Majel Barret-Roddenberry) about medical tricorders count as a conversation between two females? What about a conversation between the sex-bot Lenore from the film Serenity and Zoe Washburn about… I don’t know… cookie recipes?
This is entirely ignoring the fact that the entire conversation between Maz and Rey is about her carrying on Luke’s destiny. The only line that can be considered about not-Luke or another dude is about Luke’s lightsaber.
The fact that we are even having this conversation is a sign that it doesn’t pass the spirit of the test. It should be absolutely not even difficult to find two female characters talking like people in a film with as much going on in it as Star Wars.
Imagine watching a film and literally every male character only talks to a woman or about a woman. Then make that almost every movie you see ever. It would get terribly annoying very quickly.