uuid: relaxed UUID validation

[TarantoolBot]

Related dev. issue(s): tarantool/tarantool#5444
Related doc. issue: #4333

Product: Tarantool
Since: 3.2
Root document:

• https://www.tarantool.io/en/doc/latest/reference/reference_lua/uuid/
• https://www.tarantool.io/en/doc/latest/reference/configuration/configuration_reference/#confval-database.instance_uuid
• https://www.tarantool.io/en/doc/latest/platform/ddl_dml/value_store/#uuid

SME: @ Buristan

Details

The UUID module documentation mentions that Tarantool generates
UUIDs following the rules for RFC 4122,version 4, variant 1. It is
worth mentioning that the user can store an arbitrary 128-bit sequence
as an UUID for binary data. String representations still should match
the grammars in RFC 4122, Section 3, and RFC 9562, Section 4.

Requested by @ Buristan in tarantool/tarantool@b0b32bf.