chore: upgrade to Jest 27 (#63)

Author: nickserv

package.json

@@ -43,7 +43,7 @@
     "commitizen": "^3.0.7",
     "cz-conventional-changelog": "^2.1.0",
     "husky": "^1.3.1",
-    "jest": "^24.7.1",
+    "jest": "^27.0.6",
     "metro-react-native-babel-preset": "^0.52.0",
     "prettier": "^1.16.4",
     "pretty-quick": "^1.10.0",