chore(deps): update dependency standard-version to v9

Author: renovate-bot

package.json

@@ -59,7 +59,7 @@
     "puppeteer": "2.0.0",
     "rollup-plugin-node-builtins": "^2.1.2",
     "rollup-plugin-node-globals": "^1.4.0",
-    "standard-version": "5.0.2",
+    "standard-version": "9.0.0",
     "tslint": "5.16.0",
     "tslint-react": "4.0.0",
     "workbox-build": "4.3.1"