I think this SO post or one of the other ones on the same page should help. looks like you can do this from the AWS Management Console, i'm like you however and AWS isn't exactly in my wheel house so hopefully someone else will help out if you have more questions or if that SO page doesn't help at all
Hi @maillme, it depends on the resource configuration. If you have connected to it using SSL/TLS, you'll have to update the certificates. If you connected without them, you probably won't have to do anything on Retool's end.