chore(deps): update dependency prettier to v1.19.1

Author: renovate-bot

package-lock.json

@@ -45,7 +45,7 @@
     "fetch-mock": "7.3.3",
     "husky": "2.4.0",
     "jest": "24.8.0",
-    "prettier": "1.17.1",
+    "prettier": "1.19.1",
     "pretty-quick": "1.11.1",
     "rimraf": "2.6.3",
     "semantic-release": "15.14.0",