It’d depend to some degree on how far you are from your goals and how much hard(er) riding you’re willing to sacrifice to get there. There are any number of strength training programs that would eventually get you to those numbers. The thread below has a bunch of them.
Personally I followed the starting strength program and got up to most of the sprinter benchmarks within 4-5 months. Though I was lifting 3x a week and didn’t get much (any) faster on the bike during the same period.