The problem we were having so far with build iOS bridge through pipelines
was that each time we did pod install, React scheme would vanish from Xcode
and then the build script would crap with "React scheme not found".
We don't update our Pods very often (probably once in 6 months). So instead of
dealing with running manual builds just for iOS build, we'll instead install pods manually, when we update them.


Former-commit-id: ad51ccc3f4d37ee343d1234495e937270088c695