Rename MonthlyPreparationService to StableBranchService
Follow-up to !1199 (merged), this is a simple rename of the service in preparation for adding more functionality to it.
I made this its own MR so that future review is easier.
Follow-up to !1199 (merged), this is a simple rename of the service in preparation for adding more functionality to it.
I made this its own MR so that future review is easier.