build: set minimum realm version to v12.8.1 (#34)

Author: ian-wd

package-lock.json

@@ -37,7 +37,7 @@
   "dependencies": {
     "promise-reflect": "^1.1.0",
     "react-native-uuid": "^2.0.1",
-    "realm": "^12.6.1"
+    "realm": "^12.8.1"
   },
   "devDependencies": {
     "@babel/core": "^7.17.9",