CHANGELOG.md: add link to #6433

Author: dconeybe

firebase-dataconnect/CHANGELOG.md

@@ -18,7 +18,8 @@
   these experimental APIs to opt-in using
   `@OptIn(ExperimentalFirebaseDataConnect::class)` to suppress warnings or
   errors related to using these experimental APIs.
-  ([#6424](https://github.com/firebase/firebase-android-sdk/pull/6424))
+  ([#6424](https://github.com/firebase/firebase-android-sdk/pull/6424)) and
+  ([#6433](https://github.com/firebase/firebase-android-sdk/pull/6433))
 
 # 16.0.0-beta02
 * [changed] Updated protobuf dependency to `3.25.5` to fix