chore: Add RNA changeset (#3067)

* add RNA changeset

* update changeset

Co-authored-by: Joe Buono <[email protected]>

Author: joebuono

.changeset/happy-cats-agree.md

@@ -0,0 +1,7 @@
+---
+"@aws-amplify/ui": minor
+"@aws-amplify/ui-react-core": minor
+"@aws-amplify/ui-react-native": minor
+---
+
+feat: Add React Native Authenticator