chore: update changelog

References: https://outsystemsrd.atlassian.net/browse/RMET-3407

CHANGELOG.md

@@ -6,14 +6,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 The changes documented here do not include those from the original repository.
 
-## Unreleased
+## [Version 2.1.1]
+
+### 15-05-2024
+- Feat: Update dependency to OSFirebaseMessagingLib-Android, making `FirebaseMessagingReceiveService` an open class so it can be extended (https://outsystemsrd.atlassian.net/browse/RMET-3407).
 
 ### 17-04-2024
 - Fix: Properly serialize data objects with annotation (https://outsystemsrd.atlassian.net/browse/RMET-3109).
 
 - Feat: Deal with `sounds` as a resource in ODC. (https://outsystemsrd.atlassian.net/browse/RMET-3315)
 
-## 2.1.0
+## [Version 2.1.0]
 
 - Fix: Make `cleanUp` hook only run after all sound files are copied successfully. (https://outsystemsrd.atlassian.net/browse/RMET-3326)
 - Chore: Update cordova hooks with new OutSystems specific errors. (https://outsystemsrd.atlassian.net/browse/RMET-3302)