Thanks for reaching out to Q&A.
Unfortunately, the Azure spring cloud team deprecated Gremlin support last year due to low usage.
However, they are collecting customer feedback for Gremlin,
So I would request you to log your entry in the above feedback link so that the team is aware of the need.
Gremlin support is not planned for this semester but with enough demand, it will be reevaluated for the next semester.