fixed minor bug in deprecation for poiss/bern

ngclearn/components/input_encoders/bernoulliCell.py

@@ -85,7 +85,7 @@ class BernoulliCell(JaxComponent):
     """
 
     @deprecate_args(max_freq="target_freq")
-    def __init__(self, name, n_units, target_freq=63.75, batch_size=1, **kwargs):
+    def __init__(self, name, n_units, target_freq=0., batch_size=1, **kwargs):
         super().__init__(name, **kwargs)
 
         ## Constrained Bernoulli meta-parameters