bump version to 0.8.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-mmkv-storage",
-  "version": "0.7.6",
+  "version": "0.8.0",
   "description": "This library aims to provide a fast & reliable solution for you data storage needs in react-native apps. It uses [MMKV](https://github.com/Tencent/MMKV) by Tencent under the hood on Android and iOS both that is used by their WeChat app(more than 1 Billion users). Unlike other storage solutions for React Native, this library lets you store any kind of data type, in any number of database instances, with or without encryption in a very fast and efficient way.",
   "main": "./dist/index.js",
   "scripts": {