* Encrypt LDAP bind password in db with SECRET_KEY
The LDAP source bind password are currently stored in plaintext in the db
This PR simply encrypts them with the setting.SECRET_KEY.
Fix#15460
Signed-off-by: Andrew Thornton <art27@cantab.net>
* remove ui warning regarding unencrypted password
Co-authored-by: silverwind <me@silverwind.io>