chore: update async storage to v2

Author: abarker-launchdarkly

packages/sdk/react-native/example/package.json

@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "@launchdarkly/react-native-client-sdk": "workspace:^",
-    "@react-native-async-storage/async-storage": "^1.21.0",
+    "@react-native-async-storage/async-storage": "^2.0.0",
     "expo": "52.0.14",
     "expo-status-bar": "~1.11.1",
     "react": "18.3.1",

packages/sdk/react-native/package.json

@@ -42,7 +42,7 @@
   },
   "dependencies": {
     "@launchdarkly/js-client-sdk-common": "1.15.1",
-    "@react-native-async-storage/async-storage": "^1.21.0",
+    "@react-native-async-storage/async-storage": "^2.0.0",
     "base64-js": "^1.5.1"
   },
   "devDependencies": {