[Tracking] Deprecate jCenter in build.gradle

[Jag96]

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Coming from this discussion, jcenter will no longer be updated. As a result, mavenCentral will be used instead for all react-native-community packages. More conversation in this internal thread where we discussed migrating over to mavenCentral.

Creating this tracking issue for discussion and updates related to updating 3rd party packages to use mavenCentral.

cc @Expensify/mobile-deployers

[roryabraham]

Two known packages that have ditched jcenter but not yet included that change in a release:

• react-native-clipboard/clipboard (previously react-native-community/clipboard): react-native-clipboard/clipboard@103b433
• wonday/react-native-pdf: replace deprecated jcenter() wonday/react-native-pdf#606

We'll want to upgrade those by either pointing our dependency directly at a git commit or by waiting for them to release new versions of their packages. There might be other dependencies that need upgrading as well.

[Julesssss]

Here's a PR I opened previously for removing NewDot Onfido BinTray dependency. Please feel free to review! I also resolved the OldDot BinTray dependency a few weeks ago.

We'll want to upgrade those by either pointing our dependency directly at a git commit or by waiting for them to release new versions of their packages.

I don't think we should do this. BinTray is the troublesome repo, because it has completely shut down and we should replace these dependencies (we have done this already ✅ ). JCenter will continue to host indefinitely, so we simply need to migrate away as and when we bump lib versions. As @roryabraham has already added the mavenCentral repo to NewDot, I suggest that we do nothing -- in the unlikely event that a library is not hosted on mavenCentral, it will almost certainly be mentioned in the release notes for that library and can be dealt with manually then.

[Julesssss]

I should have created this issue when raising the PRs, so thanks for doing that @Jag96! I suggest we do the following before marking this as resolved:

• Add mavenCentral to the list of repositories in NewDot build.gradle
• Add mavenCentral to the list of repositories in OldDot build.gradle -> it's optional IMO, but is far simpler than migrating libraries manually
• Merge the broken BinTray dependency fix in OldDot: 'Remove BinTray repository as the service is no longer available'
• Merge the broken BinTray dependency fix in NewDot: 'Resolve missing Onfido dependency'