Added LDAP group tag to LDAP tests

[marcusmoore]

Description

This PR simply adds the @group annotation to the LDAP tests so they can be skipped by developers that do not the LDAP extension installed.

php artisan test --exclude-group=ldap

Of course there are other opportunities for grouping tests but this focuses on just LDAP.

Type of change

• Chore

[shortcut-integration]

This pull request has been linked to Shortcut Story #24805: Allow LDAP tests to be skipped.

[what-the-diff]

PR Summary

• Update to Test Suite Command
  The method for executing the complete test suite has been revised in the 'Testing' guide. This change now includes syntax highlighting in the related code, making it more user-friendly and easy to follow.

• Enhanced Examples in Testing Guide
  The 'Testing' guide now includes added examples of how to run individual tests and execute tests with specific groups. The examples also feature syntax highlighting for ease of understanding and usage.

• New Categorization of Test Case in LdapTest
  The 'LdapTest.php' file now includes a new categorization annotation that labels the associated test case as part of the 'ldap' group. This update aids in organization and easy identification of test cases belonging to certain groups.