[person search] fix bug when using birhtdateafter and birthdate before on advanced search

src/Bundle/ChillPersonBundle/Repository/PersonACLAwareRepository.php

@@ -180,14 +180,14 @@ final class PersonACLAwareRepository implements PersonACLAwareRepositoryInterfac
 
         if (null !== $birthdateBefore) {
             $query->andWhereClause(
-                'p.birthdate < ?::date',
+                'person.birthdate <= ?::date',
                 [$birthdateBefore->format('Y-m-d')]
             );
         }
 
         if (null !== $birthdateAfter) {
             $query->andWhereClause(
-                'p.birthdate > ?::date',
+                'person.birthdate >= ?::date',
                 [$birthdateAfter->format('Y-m-d')]
             );
         }