Wrap remote cache creation with a try-catch (#121340)
Summary: In production I am seeing errors like "AttributeError: module 'triton.runtime' has no attribute 'fb_memcache'", likely due to some package skew. Until this is resolved, lets wrap this code with try-catch.
Test Plan: CI
Differential Revision: D54604339
Pull Request resolved: https://github.com/pytorch/pytorch/pull/121340
Approved by: https://github.com/aakhundov
