[Static Runtime] Remove output type constraints (#60669)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/60669
Test Plan: Added unit test to check for nested outputs.
Reviewed By: ajyu
Differential Revision: D29322025
fbshipit-source-id: a3c8d3c5f0bb7cf7fda4bc5f579adb8fa7bc3724
