Instabug-iOS SDK v7.0.3

Thanks for all the great feedback you've sent us about version 7.x of the SDK! We're working hard to address everything you've sent us.

We're also sorry that a few bugs have slipped into 7.0. We've been working over the past week to fix them and to double down on our tests to make sure those aren't going to happen again. Special thanks to everyone that took the time to report those bugs. ❤️