chore(auth-ldap): Prepare for php 8.3 deprecation

[Hipska]

Base information

Question	Answer
Related to a SourceForge thead / Another PR / Combodo ticket?	N/A
Type of change?	Enhancement

Objective

According to the docs, the signature ldap_connect(?string $host = null, int $port = 389) is deprecated as of PHP 8.3.0.

Proposed solution

Introduce new uri module setting and provide migration to be able to use the preferred way of ldap_connect.

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [ ] I have tested all changes I made on an iTop instance
• [ ] I have added a unit test, otherwise I have explained why I couldn't
• [x] Is the PR clear and detailed enough so anyone can understand digging in the code?