Merge pull request #1172 from calad0i/np2.0

remove np.float_ (deprecated in numpy>=2.0)

Author: jmitrevs

hls4ml/model/graph.py

@@ -732,7 +732,7 @@ def _get_top_function(self, x):
         if x0.dtype in [np.single, np.float32]:
             top_function = getattr(self._top_function_lib, self.config.get_project_name() + '_float')
             ctype = ctypes.c_float
-        elif x0.dtype in [np.double, np.float64, np.float_]:
+        elif x0.dtype in [np.double, np.float64]:
             top_function = getattr(self._top_function_lib, self.config.get_project_name() + '_double')
             ctype = ctypes.c_double
         else: