I just hope it doesn't, my ceremony is on the 8th of next month.I read in an article, that the the head of the union said that the strike would only be in some departments (and only in some locations) at the start.
He also said something to the effect that it would start (at first) in departments that don't seriously affect the public.
I don't get the feeling that it would affect IRCC, at least in the beginning. Let's keep our fingers crossed that it won't affect our ceremonies (at least for the foreseeable future).