feat: integratedLDAP authentication

[sabhas]

Issue

closes #226

Intent

Integrate the LDAP authentication along with internal authentication

Implementation

• add an additional authProvider attribute in User and Group model to distinguish between LDAP user and normal user
• introduced new env variables for LDAP configuration
• Added new API endpoints for handling external authentication providers
• disable POST, PATCH, DELETE API endpoints of group and user router when auth provider is LDAP
• Implemented LDAPClient class to handle different operations about LDAP
• Implemented the logic for verifying the user from LDAP server
• On frontend side, added a new TAB in setting page for showing info about LDAP and providing the option to synchronize with LDAP

Checks

• [ ] Code is formatted correctly (npm run lint:fix).
• [ ] Any new functionality has been unit tested.
• [ ] All unit tests are passing (npm test).
• [ ] All CI checks are green.
• [ ] Reviewer is assigned.

[sasjsbot]

:tada: This PR is included in version 0.22.0 :tada:

The release is available on:

• GitHub release
• v0.22.0

Your semantic-release bot :package::rocket: