LDAP Configuration Issue: Invalid Distinguished Name

### Current Behavior

You have configured Microsoft LDAP, but when creating a user from the system settings LDAP users, the distinguished name (DN) always shows as INVALID. Here is your configuration:

ALPINE_LDAP_ENABLED: "true"

ALPINE_LDAP_SERVER_URL: "ldap://xxx:3268"

ALPINE_LDAP_BASEDN: "DC=xxx,DC=cn"

ALPINE_LDAP_SECURITY_AUTH: "simple"

ALPINE_LDAP_BIND_USERNAME: "CN=jamessong,OU=xxx,DC=xxxx,DC=cn"

ALPINE_LDAP_BIND_PASSWORD: "xxx"

I mentioned that ldapsearch can successfully retrieve users, but the distinguished name is still showing as INVALID.

### Steps to Reproduce

1.

### Expected Behavior

can log in using Microsoft LDAP.

### Dependency-Track Version

4.13.6

### Dependency-Track Distribution

Container Image

### Database Server

PostgreSQL

### Database Server Version

postgres:17-alpine

### Browser

Google Chrome

### Checklist

- [x] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#filing-issues)
- [x] I have checked the [existing issues](https://github.com/DependencyTrack/dependency-track/issues) for whether this defect was already reported