Centralise and bump deps (#4759)

Summary:
[android][tutorial] Centralise and bump deps
Per title.

Pull Request resolved: https://github.com/facebook/flipper/pull/4759

Test Plan:
As before.

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* __->__ https://github.com/facebook/flipper/issues/4759
* https://github.com/facebook/flipper/issues/4758
* https://github.com/facebook/flipper/issues/4757
* https://github.com/facebook/flipper/issues/4756
* https://github.com/facebook/flipper/issues/4755
* https://github.com/facebook/flipper/issues/4754
* https://github.com/facebook/flipper/issues/4753
* https://github.com/facebook/flipper/issues/4752
* https://github.com/facebook/flipper/issues/4751

Reviewed By: ivanmisuno

Differential Revision: D46069041

Pulled By: passy

fbshipit-source-id: c970c57e72445faca92a0618ed612ec86eb9f970

build.gradle

@@ -67,6 +67,7 @@ ext.deps = [
         supportEspresso    : 'androidx.test.espresso:espresso-core:3.5.1',
         supportEspressoIntents : 'androidx.test.espresso:espresso-intents:3.5.1',
         supportTestRunner  : 'androidx.test:runner:1.5.2',
+        supportCoreKtx     : 'androidx.core:core-ktx:1.10.1',
         // Arch
         archPaging         : 'android.arch.paging:runtime:1.0.1',
         // First-party