Replace np.sctype2char

Author: Armavica

pytensor/tensor/elemwise.py

@@ -685,7 +685,7 @@ def prepare_node(self, node, storage_map, compute_map, impl):
             and isinstance(self.nfunc, np.ufunc)
             and node.inputs[0].dtype in discrete_dtypes
         ):
-            char = np.sctype2char(out_dtype)
+            char = np.dtype(out_dtype).char
             sig = char * node.nin + "->" + char * node.nout
             node.tag.sig = sig
         node.tag.fake_node = Apply(