chore: update devDependencies for security (#89)

Author: Naturalclar

package.json

@@ -29,12 +29,12 @@
     "@types/react": "^16.9.17",
     "@types/react-native": "^0.62.1",
     "babel-eslint": "^10.1.0",
-    "babel-jest": "^25.1.0",
-    "eslint": "^6.8.0",
+    "babel-jest": "^26.0.1",
+    "eslint": "6",
     "eslint-plugin-prettier": "^3.1.2",
     "flow-bin": "^0.113.0",
     "husky": "^4.0.10",
-    "jest": "^25.2.4",
+    "jest": "^26.0.1",
     "lint-staged": "^10.0.0",
     "metro-react-native-babel-preset": "0.56.0",
     "react": "16.11.0",