Setup homebrew in ubuntu machine (#46575)

Summary:
This change setups homebrew on Ubuntu. Due to actions/runner-images#6283, brew is not in the PATH anymore.

## Changelog:
[Internal] - Setup homebrew in ubuntu machine

Pull Request resolved: #46575

Test Plan: Can't test before it lands. :(

Reviewed By: cortinico

Differential Revision: D63027253

Pulled By: cipolleschi

fbshipit-source-id: e0b3a3c1a2a7b0659f0c1f57c45d8d42a74734a1

.github/workflows/trigger-e2e-on-comment.yml

@@ -13,6 +13,10 @@ jobs:
  runs-on: ubuntu-latest
  if: github.event.issue.pull_request != '' && contains(github.event.comment.body, '/test-e2e')
  steps:
+ # This is needed because of https://github.com/actions/runner-images/issues/6283
+ # TL;DR: brew is not in the PATH anymore.
+ - name: Setup Homebrew
+ uses: Homebrew/actions/setup-homebrew@master
  - name: Install jq
  run: brew install jq
  - name: Run E2E Tests