* feat: generate persistable admin token
- this commit allows admin token creation using `influxdb3 create token
--admin` and also allows regeneration of admin token by `influxdb3
create token --admin --regenerate`
- `influxdb3_authz` crate hosts all low level token types and behaviour
- catalog log and snapshot types updated to use the token repo
- tests that relied on auth have been updated to use the new token
generation mechanism and new admin token generation/regeneration tests
have been added
* feat: list admin tokens
- allows listing admin tokens
- uses _internal db for token system table
- mostly test fixes due to _internal db
praveen-influx