[Feature] Update native OneSignal SDKs

[shepherd-l]

Description

One Line Summary

Updates the included native OneSignal SDKs to the latest player model version.

Details

Motivation

Updates Unity SDK to include changes and fixes from the Android and iOS SDK

Scope

Bumps Android SDK from 4.8.5 to 4.8.8.

• Fixes various ANRs
• See release notes for full changes

Bumps iOS SDK from 3.12.4 to 3.12.9.

• Adds privacy manifests
• Fixes various iOS crashes
• See release notes for full changes

Testing

Manual testing

Tested OneSignal initialization, app build with Unity 2021.3.10f1 of the OneSignal example App on a Pixel 6 with Android 13 and iPhone 12 with iOS 15.5.
Checked Signature of OneSignalCore in .xcworkspace. (Pods > OneSignalXCFramework > OneSignalCore > Frameworks > OneSignalCore)

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
  • If it is hard to explain how any codes changes are related to each other then it most likely needs to be more than one PR
• 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.
  • Simplify with less code, followed by splitting up code into well named functions and variables, followed by adding comments to the code.
• I have reviewed this PR myself, ensuring it meets each checklist item
  • WIP (Work In Progress) is ok, but explain what is still in progress and what you would like feedback on. Start the PR title with "WIP" to indicate this.

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