excluded forecasting test for tcn

Author: lucifer4073

aeon/testing/testing_config.py

@@ -46,6 +46,8 @@
         "check_persistence_via_pickle",
         "check_save_estimators_to_file",
     ],
+    # checks required for multivariate
+    "TCNForecaster": ["check_forecaster_output"],
     # needs investigation
     "SASTClassifier": ["check_fit_deterministic", "check_estimator_multithreading"],
     "RSASTClassifier": ["check_fit_deterministic", "check_estimator_multithreading"],