Update dependency now to v19

Author: renovate-bot

package.json

@@ -91,7 +91,7 @@
     "jest-haste-map": "26.3.0",
     "jest-resolve": "26.4.0",
     "lint-staged": "10.2.11",
-    "now": "16.7.3",
+    "now": "19.2.0",
     "now-lambda-runner": "4.0.0",
     "npm-run-all": "4.1.5",
     "postcss-modules": "3.2.1",