[yarn] Run yarn-deduplicate to tidy up yarn.lock

Summary: Noticed that yarn cleaninstall was taking a while for me (~120 seconds). Back down to ~100 seconds after running yarn-deduplicate. Didn't do any in-depth profiling, so improvement might just be random noise.. but figured it wouldn't hurt.

Test Plan: Trusting semver and CI. Happy to just abandon this if there's any concern.

Reviewers: tomek, marcin, jon, bartek, ashoat

Reviewed By: ashoat

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D6405