Update dependency np to v6.2.3

Author: renovate-bot

package.json

@@ -46,7 +46,7 @@
     "esdoc-inject-script-plugin": "1.0.0",
     "esdoc-inject-style-plugin": "1.0.0",
     "esdoc-standard-plugin": "1.0.0",
-    "np": "6.2.2",
+    "np": "6.2.3",
     "nyc": "15.0.1"
   },
   "files": [