Sort group member listing by WatIAM ID (#78)

Closes #74.

Co-authored-by: Jono <jowonowo@gmail.com>
Reviewed-on: #78
Reviewed-by: Raymond Li <raymo@csclub.uwaterloo.ca>
Co-authored-by: Jonathan Leung <j23leung@csclub.uwaterloo.ca>
Co-committed-by: Jonathan Leung <j23leung@csclub.uwaterloo.ca>

ceod/model/LDAPService.py

@@ -112,14 +112,14 @@ class LDAPService:
         filter = '(|' + ''.join([f'(uid={uid})' for uid in usernames]) + ')'
         attributes = ['uid', 'cn', 'program']
         conn.search(self.ldap_users_base, filter, attributes=attributes)
-        return [
+        return sorted([
             {
                 'uid': entry.uid.value,
                 'cn': entry.cn.value,
                 'program': entry.program.value or 'Unknown',
             }
             for entry in conn.entries
-        ]
+        ], key=lambda member: member['uid'])
 
     def get_users_with_positions(self) -> List[IUser]:
         conn = self._get_ldap_conn()