all: update changelog

Author: arnaud-roland

CHANGELOG.md

@@ -1,3 +1,12 @@
+# 2.0.0
+
+**⚠️ Batch HMS Plugin now requires Android min SDK level 21 or higher.**
+
+- Bump minimum HMS Push Kit version to 6.5
+- Bump minimum HMS AppGallery Connect Plugin to 1.9.1
+- Bump minimum Batch SDK version to 2.0
+- Removed automatic collection of the HMS Advertising ID.
+
 # 1.1.0
 
 - Bump minimum HMS Push version to 5.3