My wife had the same problem being 5’3″ and small in stature. She thought that Gill men’s small OS2 trousers matched with a small woman’s matching jacket was the best she found though still a bit long in the leg.
As it happens we have this set brand new as it was before COVID and then never used. Now due to health reasons is not needed. If you are interested you can message directly through the web site as she was looking to selling them on ebay or similar.
You could also look at Decathlon Tribord sailing kit for children which I see goes up to 5’7″ height.