Warn when a pull request changes the public API

[1ec5]

A CI bot should automatically diff the public API in each pull request with a baseline commit. If the pull request changes the public API in a backwards incompatible manner, the bot should automatically post a comment warning about the breakage. mapbox/mapbox-navigation-ios#3103 implemented this workflow for the navigation SDK, but this library is subject to a similar backwards compatibility guarantee and should benefit from the same guardrail.

/cc @mapbox/navigation-ios

[bamx23]

@1ec5 I believe it was added just recently by @S2Ler: #677

[1ec5]

Ah, that explains why it didn’t show up in #684. 👍