Summary:
This diff updates and adds the boost ios podspec in flipper repo. This new boost dep works for Arm and i386 archs for simulator too.
This diff also updates our GH Action to remove i386 from excluded archs. Still arm64 is kept as non M1 mac machines do not have arm swift symbols for arm simulator. And since all our CI is on non M1, it is required.
It also takes care of https://github.com/facebook/flipper/issues/2268
## Changelog
- Update the boost dep
- Update the GH action
Pull Request resolved: https://github.com/facebook/flipper/pull/2341
Test Plan: CI
Reviewed By: mweststrate
Differential Revision: D28537004
Pulled By: priteshrnandgaonkar
fbshipit-source-id: 474ccec674d0edf5fa7b792b15a326e0f139d977