fix(android, build): remove jcenter / use modern versions

[mikehardy]

Hi there!

This is the version of the build.gradle that I'm using via patch-package in my project, thought it would be good to make a PR for everyone

Fixes #29 - removes jcenter

[LinusU]

Awesome, thank you for this!

I see that this bumps e.g. targetSdkVersion, does this make it a breaking change, or should it be cool since that is just the fallback?

[mikehardy]

Hey @LinusU ! Sorry for the delay I missed this notification. You ask a great question
My original thinking was that these versions were safe - even if they are fallback they should be safe
But then while working with release testers group in react-native it turns out that moving to android gradle plugin 7 requires gradle 7 (which many may not have moved to, so that is a break) and further if you move to gradle plugin 7 / gradle 7 you may have compile issues until you move to Java 11, which many may not have done yet so that is a break.

Good times facebook/react-native#32540 (comment)

To make sure that compile target of 31 doesn't affect anyone (though I think it is fine?) and since the module isn't using symbols from 31 I left that at 30 as well in the followon commit just to be sure

TL;DR: - I backed this off to gradle plugin version 4.2.2 / api 30 which is the current react-native template default and should be compatible with the vast majority of currently installed toolchains out there

[LinusU]

Thank you ❤️

Published as 🚢 1.7.1 / 2021-11-15