One safety checker SD model failed since 'reduceSum' which from Safety Checker requires int64 input type. And currently, WebNN spec only supports int32, uint32, float32 and float16 for reduceSum.

I suppose we should add int64 and uint64 data type for ReduceSum, ReduceSumSquare, ReduceProduct and ReduceL1 which is consistent with DirectML reduce operation definition:
https://learn.microsoft.com/en-us/windows/win32/api/directml/ns-directml-dml_reduce_operator_desc#multiply-and-sum and https://learn.microsoft.com/en-us/windows/win32/api/directml/ns-directml-dml_reduce_operator_desc#l1-and-sum_square.