fix(user_ldap): retrieve from LDAP first "email shaped" value instead of first value

[Thatoo]

retrieve from LDAP first "email shaped" value instead of first value

• Resolves: # [Bug]: LDAP Advance > Special attributes > email field should take first "email shaped" value, not first value of LDAP answer. #49177

Summary

TODO

• ...

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[Thatoo]

Thank you @solracsf .
Would you mind translate me what these checking error mean and what I can do to solve them?