Update image.py

Author: pctablet505

keras/src/backend/tensorflow/image.py

@@ -707,7 +707,7 @@ def process_coordinates(coords, size):
         gathered = tf.transpose(tf.gather_nd(input_arr, indices))
 
         # Cast to computation dtype early to avoid type issues
-        dtype=weights[0].dtype
+        dtype = weights[0].dtype
         gathered = tf.cast(gathered, dtype)
         gathered = tf.cast(gathered, weights[0].dtype)