fix: upgrade concurrently from 6.2.0 to 6.2.1 (#316)

Snyk has created this PR to upgrade concurrently from 6.2.0 to 6.2.1.

See this package in npm:
https://www.npmjs.com/package/concurrently

See this project in Snyk:
https://app.snyk.io/org/manekinekko/project/bd52cacb-04c1-441d-a05c-fb5fb59ae8a3?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -29,7 +29,7 @@
     "@types/globrex": "^0.1.0",
     "chalk": "^4.1.2",
     "commander": "^7.2.0",
-    "concurrently": "^6.2.0",
+    "concurrently": "^6.2.1",
     "cookie": "^0.4.1",
     "finalhandler": "^1.1.2",
     "globalyzer": "^0.1.4",