Simple question about redirects

Hello all

Started to dabble in nginx lately but I'm still having issues with many redirects and rewrites.

I can make and understand simple ones but need help with some, for instance...

I have a website and plenty links and images are ending with random string of numbers...for instance https://www.somewebiste.com/images/cat-image-7646465545...

I want to make a rule that will find all those links and redirect them to https://www.somewebiste.com/images/cat-image

How would I proceed to do it?

Thank you in advance