UUID Column change the generation function

[yeshamavani]

Is your feature request related to a problem? Please describe. Currently we use md5() to generate the uuid column, but since it is not completly safe to use it suggest to use https://www.postgresql.org/docs/current/functions-uuid.html

Also the identity columns should also be changed

CREATE TABLE IF NOT EXISTS main.auth_clients (
	id                   integer  NOT NULL GENERATED BY DEFAULT AS IDENTITY,

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