chore: update gradle & kotlin versions

[kirillzyusko]

📜 Description

Updated gradle to 6.9.4 and kotlin to 1.8.22.

💡 Motivation and Context

It was needed to fix compilation issues in https://github.com/kirillzyusko/react-native-keyboard-controller/actions/runs/6580087395/job/17877337926?pr=257

...
e: /home/runner/work/react-native-keyboard-controller/react-native-keyboard-controller/android/src/paper/java/com/reactnativekeyboardcontroller/StatusBarManagerCompatModule.kt: (24, 12): Class 'kotlin.Unit' was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
The class is loaded from /home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.10/6d5560a229477df9406943d5feda5618e98eb64c/kotlin-stdlib-1.8.10.jar!/kotlin/Unit.class
e: /home/runner/work/react-native-keyboard-controller/react-native-keyboard-controller/android/src/paper/java/com/reactnativekeyboardcontroller/StatusBarManagerCompatModule.kt: (29, 12): Class 'kotlin.Unit' was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
The class is loaded from /home/runner/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.10/6d5560a229477df9406943d5feda5618e98eb64c/kotlin-stdlib-1.8.10.jar!/kotlin/Unit.class
...

📢 Changelog

Android

• updated gradle to 6.9.4;
• updated kotlin to 1.8.22.
• specified kotlinVersion in FabricExample as in example;

🤔 How Has This Been Tested?

Tested via CI in this PR.

📝 Checklist

• CI successfully passed

[github-actions]

📊 Package size report

Current size	Target Size	Difference
73638 bytes	73639 bytes	-1 bytes 📉