He seems to be a taggish reg, most tag regs will raise donkbets.
I call and c/c the turn. Leading out the turn may come off as very strong imo and take out hands you may beat. You could 3bet the flop but that will probably take away the flush draw from your range in his mind. However, my record with 2 pair hands is terrible.

I will ask the question that many used to, and still ask me.....
Why did you donkbet? What did you want him to do (certainly not fold)?, so then dont place a bet without a plan.