fix(sample): avoid bitwise GUID generation

Author: thomson-t

ExpoTestApp/App.tsx

@@ -29,7 +29,7 @@ const eventManagerEmitter = new NativeEventEmitter(RoktEventManager);
 const generateGuid = () =>
   'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, character => {
     const random = Math.floor(Math.random() * 16);
-    const value = character === 'x' ? random : (random & 0x3) | 0x8;
+    const value = character === 'x' ? random : 8 + (random % 4);
     return value.toString(16);
   });
 

sample/index.js

@@ -29,7 +29,7 @@ const eventManagerEmitter = new NativeEventEmitter(MParticle.RoktEventManager);
 const generateGuid = () =>
   'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, character => {
     const random = Math.floor(Math.random() * 16);
-    const value = character === 'x' ? random : (random & 0x3) | 0x8;
+    const value = character === 'x' ? random : 8 + (random % 4);
     return value.toString(16);
   });