[special] OpInfo `i0e`: fix missing check (#56232)
Summary:
Fixes: https://github.com/pytorch/pytorch/issues/56274
Missed to check if scipy is installed or not (for reference tests).
Thanks mruberry !!
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56232
Reviewed By: ejguan
Differential Revision: D27832397
Pulled By: ezyang
fbshipit-source-id: abc40ce7bf14d3c0f20877030880663ccb7fe375
