Update pg-promise to the latest version 🚀 (#6691)

* fix(package): update pg-promise to version 10.5.6

* chore(package): update lockfile package-lock.json

Co-authored-by: greenkeeper[bot] <23040076+greenkeeper[bot]@users.noreply.github.com>

Author: greenkeeper[bot]

package-lock.json

@@ -47,7 +47,7 @@
     "mime": "2.4.6",
     "mongodb": "3.5.8",
     "parse": "2.13.0",
-    "pg-promise": "10.5.4",
+    "pg-promise": "10.5.6",
     "pluralize": "^8.0.0",
     "redis": "3.0.2",
     "semver": "7.3.2",