chore(deps): update dependency grunt to v1.2.1

Author: renovate-bot

package-lock.json

@@ -53,7 +53,7 @@
     "dotenv": "8.2.0",
     "formatio": "1.2.0",
     "globstar": "1.0.0",
-    "grunt": "1.2.0",
+    "grunt": "1.2.1",
     "grunt-babel": "8.0.0",
     "grunt-cli": "1.3.2",
     "grunt-flyway": "travi/grunt-flyway#credentials",