Version 12.1.0
### 12.1.0
- Changes
- General: Update to Firebase C++ SDK version 12.1.0.
- General (Android): Update to Firebase Android BoM version 33.1.1.
- General (iOS): Update to Firebase Cocoapods version 10.28.1.
- General: Update to EDM4U version 1.2.181.
- Analytics (iOS): Add support for
`InitiateOnDeviceConversionMeasurementWithHashedEmailAddress` and
`InitiateOnDeviceConversionMeasurementWithHashedPhoneNumber`.
- Messaging (Android): Fixed a potential race condition on receiving
messages after cleanup.
([#1030](https://github.com/firebase/firebase-unity-sdk/issues/1030)).
- Messaging (iOS): Fixed an issue with notifications being lost if they
were received before Firebase Messaging was initialized.
([#377](https://github.com/firebase/firebase-unity-sdk/issues/377)).