Update base for remove conda hack per devinfra on "Bump pinned PT commit to 20250616 and mirror torch/standalone to ExecuTorch"

PyTorch added torch/standalone as a c10 dependency, so we need to mirror it to do a pin bump.

Differential Revision: [D76909683](https://our.internmc.facebook.com/intern/diff/D76909683/)

[ghstack-poisoned]

Author: swolchok