Merge pull request #1514 from OneSignal/update-eslint-version

Update the eslint version to resolve npm install error

Author: emawby

package.json

@@ -16,7 +16,7 @@
     "@react-native-community/eslint-config": "^1.1.0",
     "@types/invariant": "^2.2.2",
     "@types/react-native": "^0.66.8",
-    "eslint": "^6.5.1",
+    "eslint": "^7.0.0",
     "eslint-config-prettier": "^8.5.0",
     "prettier": "^2.7.1",
     "typescript": "^3.8.3"