[Feature] Bump OneSignal Android SDK version

[shepherd-l]

Description

One Line Summary

Updates included OneSignal Android SDK to 5.0.2.

Details

Motivation

Bump OneSignal Android SDK to latest version to include native fixes

Testing

Manual testing

Tested OneSignal initialization, app build with Unity 2022.3.10f1 of the OneSignal example app on a emulated Pixel 4 with Android 12.

Affected code checklist

• Notifications
  • Display
  • Open
  • Push Processing
  • Confirm Deliveries
• Outcomes
• Sessions
• In-App Messaging
• REST API requests
• Public API changes

Checklist

Overview

• I have filled out all REQUIRED sections above
• PR does one thing
• Any Public API changes are explained in the PR details and conform to existing APIs

Testing

• I have included test coverage for these changes, or explained why they are not needed
• All automated tests pass, or I explained why that is not possible
• I have personally tested this on my device, or explained why that is not possible

Final pass

• Code is as readable as possible.
• I have reviewed this PR myself, ensuring it meets each checklist item

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This change is