chore(package): update workbox-build to version 5.1.3

Closes #63

Author: greenkeeper[bot]

components/o-alert/package.json

@@ -26,7 +26,7 @@
     "@types/jest": "^23.3.1",
     "autoprefixer": "^9.0.2",
     "jest": "^23.4.2",
-    "workbox-build": "3.4.1"
+    "workbox-build": "5.1.3"
   },
   "author": "@o-rango",
   "license": "MIT",