[push_android] Upgrade Kotlin Gradle version

[DouglasOGarrido]

Hi, I'm using the latest version of Flutter and Kotlin Gradle version, but unfortunately the version of push_android dependency do not satisfy newer versions of Kotlin Gradle plugin.

When i build my project:

FAILURE: Build failed with an exception.

* What went wrong:
The Android Gradle plugin supports only Kotlin Gradle plugin version 1.5.20 and higher.
The following dependencies do not satisfy the required version:
project ':push_android' -> org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.50

Could you please update the dependencies? Thank you very much.

[ben-xD]

Sorry for the delay, I'll try and work on it tonight 🙂

[ben-xD]

Sorry for the delay again 😬. Got caught up with other things. Trying now

[DouglasOGarrido]

Sorry for the delay again 😬. Got caught up with other things. Trying now

Not a problem, thank you for the support! 😃 .

[ben-xD]

It turned out to be a bigger task (some dependencies of the example app had already upgraded to API level 33) so I wanted to get all of that done too. I've done that in #10

I've briefly tested on Android, looks good. A few more things to do. Should be released by end of tomorrow.

[ben-xD]

Please try 1.0.0 @DouglasOGarrido 🤓