Bump fairscale from 0.4.2 to 0.4.3 (#5474)
Bump fairscale from 0.4.2 to 0.4.3 (#5474)

Bumps [fairscale]() from 0.4.2 to 0.4.3.

---
updated-dependencies:
- dependency-name: fairscale
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
Co-authored-by: Akshita Bhagia <fd26d827fa0372727e3d5ee90ef2583b0c2ed56a@gmail.com>
allenai/allennlp,allenai/allennlp,allenai/allennlp,allenai/allennlp