Update composer.json

composer.json

@@ -8,8 +8,8 @@
     }
   ],
   "require": {
-    "unicaen/utilisateur": "^6.0",
-    "unicaen/ldap": "^6.0||^7.0"
+    "unicaen/utilisateur": "^5.0||^6.0",
+    "unicaen/ldap": "^5.0||^6.0||^7.0"
   },
   "autoload": {
     "psr-0": {