fix(ios-publish): accept body on http post and update to new api

[jcassidyav]

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What is the current behavior?

With 8.1 cli ns publish ios resulted in 401
In previous cli versions it resulted in 404 because the endpoint for changing the team was removed by apple.

What is the new behavior?

ns publish ios --appleApplicationSpecificPassword ...
ns appstore

now both work.

Fixes/Implements/Closes #5553.

[rigor789]

lgtm, just small change to simplify logic in http-client