upgrade react scripts

Author: Roshanjossey

package.json

@@ -6,7 +6,7 @@
   "devDependencies": {
     "enzyme": "^3.0.0",
     "gh-pages": "^3.1.0",
-    "react-scripts": "^4.0.3",
+    "react-scripts": "^5.0.1",
     "react-test-renderer": "^15.0.0",
     "sw-precache": "^5.2.0"
   },
@@ -18,7 +18,7 @@
   },
   "scripts": {
     "start": "react-scripts start",
-    "build": "react-scripts build && sw-precache --config=sw-precache-config.js",
+    "build": "react-scripts build",
     "test": "react-scripts test --env=jsdom",
     "eject": "react-scripts eject",
     "deploy": "npm run build&&gh-pages -b master -d build"