message: [fx2trt] prod dim is not wrapped as a tuple for single dim
  Summary:
  as titled
  CI test did not caught this failure before
diff: @@ -523,6 +523,9 @@ def add_reduce_layer(
  else:
  dim = kwargs["dim"] # type: ignore[assignment]
  + if not isinstance(dim, Sequence):
  + dim = (dim,)
  +
  if not network.has_implicit_batch_dimension:
  dim = tuple(len(input_val.shape) + i if i < 0 else i for i in dim)
  else:
  