fix: add numpy 2.4 in1d compatibility shim

Author: pplonski

supervised/__init__.py

@@ -1,3 +1,14 @@
 __version__ = "1.2.0"
 
+import numpy as np
+
+
+def _ensure_numpy_compat():
+    if not hasattr(np, "in1d"):
+        # NumPy 2.4 removed np.in1d; some dependencies still use it.
+        np.in1d = np.isin
+
+
+_ensure_numpy_compat()
+
 from supervised.automl import AutoML