I can't imagine this will cause any problem, since you must have a marriage certificate as well as the passport. The passport has information that WAS correct at the time of issue, and the marriage certificate then shows the new situation when it came into being, so both certificates are 'honest'. If you're still a bit worried, you could note the fact that the passport says 'single' because you were at the time, but now you're married and can show your marriage certificate, in your covering letter to go in with your ITA. Then you will have OBVIOUSLY been entirely open with INZ.