ExerciceCheckerError => Add docker compose down error

types/Dojo/ExerciceCheckerError.ts

@@ -2,10 +2,11 @@ enum ExerciceCheckerError {
     EXERCICE_ENONCE_GET_ERROR              = 200,
     DOCKER_COMPOSE_RUN_ERROR               = 201,
     DOCKER_COMPOSE_LOGS_ERROR              = 202,
-    EXERCICE_RESULTS_FOLDER_TOO_BIG        = 203,
-    EXERCICE_RESULTS_FILE_NOT_FOUND        = 204,
-    EXERCICE_RESULTS_FILE_SCHEMA_NOT_VALID = 205,
-    UPLOAD                                 = 206
+    DOCKER_COMPOSE_DOWN_ERROR              = 203,
+    EXERCICE_RESULTS_FOLDER_TOO_BIG        = 204,
+    EXERCICE_RESULTS_FILE_NOT_FOUND        = 205,
+    EXERCICE_RESULTS_FILE_SCHEMA_NOT_VALID = 206,
+    UPLOAD                                 = 207
 }