Update torchbench.txt to include SAM (#105222)
Goal is to include https://github.com/pytorch/benchmark/commit/745644f391b4d11da107b2c82fe2d7a3eacf561d
Pull Request resolved: https://github.com/pytorch/pytorch/pull/105222
Approved by: https://github.com/ezyang, https://github.com/cpuhrsch
