IVC test fix attempt (#364)

* bigger ivc test data

* iterations

Author: MatthewMiddlehurst

tsml_eval/estimators/clustering/consensus/tests/test_ivc.py

@@ -16,11 +16,11 @@
 @pytest.mark.parametrize("init", ["plus", "random", "aligned"])
 def test_ivc_init_methods(init):
     """Test IVC init methods."""
-    X, y = make_example_3d_numpy(n_labels=4)
+    X, y = make_example_3d_numpy(n_cases=30, n_timepoints=30, n_labels=4)
 
     ivc = IterativeVotingClustering(
         n_clusters=4,
-        max_iterations=10,
+        max_iterations=20,
         init=init,
     )
     ivc.fit(X, y)