Add LDAP as an option for authenticating a User.

[codepitbull]

Motivation

Resolves #36525

Changes
Add LDAP authentication support

[Copilot]

Pull Request Overview

This pull request adds LDAP authentication support to the HiveMQ Edge Admin API, allowing users to be authenticated against an LDAP directory server instead of using a static user list in the configuration file.

Key Changes:

• Implemented comprehensive LDAP client library with support for multiple TLS modes (NONE, LDAPS, START_TLS)
• Added XML configuration schema and entities for LDAP authentication
• Refactored authentication provider interface from IUsernamePasswordProvider to IUsernameRolesProvider
• Integrated UnboundID LDAP SDK and Testcontainers for testing

Reviewed Changes

Copilot reviewed 45 out of 45 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
hivemq-edge/src/main/java/com/hivemq/api/auth/provider/impl/ldap/*.java	Core LDAP client implementation with connection management, DN resolution strategies, and TLS support
hivemq-edge/src/main/java/com/hivemq/configuration/entity/api/Ldap*.java	XML configuration entities for LDAP authentication settings
hivemq-edge/src/main/resources/config.xsd	Schema definition for LDAP configuration elements
hivemq-edge/src/main/java/com/hivemq/api/auth/provider/IUsernameRolesProvider.java	Refactored authentication provider interface
hivemq-edge/src/main/java/com/hivemq/api/ioc/ApiModule.java	Dependency injection configuration for LDAP authentication
hivemq-edge/src/test/java/com/hivemq/api/auth/provider/impl/ldap/*.java	Comprehensive integration and unit tests with testcontainers
hivemq-edge/build.gradle.kts, gradle/libs.versions.toml	Added UnboundID LDAP SDK and Testcontainers dependencies

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[marregui]

looks good to me, all tests pass. I left a few knits to pick.

[caoccao]

LGTM