Bump pg-promise from 8.6.4 to 8.6.5 (#5509)

Bumps [pg-promise](https://github.com/vitaly-t/pg-promise) from 8.6.4 to 8.6.5.
- [Release notes](https://github.com/vitaly-t/pg-promise/releases)
- [Commits](https://github.com/vitaly-t/pg-promise/compare/8.6.4...8.6.5)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -35,7 +35,7 @@
     "mime": "2.4.0",
     "mongodb": "3.2.2",
     "parse": "2.3.2",
-    "pg-promise": "8.6.4",
+    "pg-promise": "8.6.5",
     "redis": "2.8.0",
     "semver": "6.0.0",
     "tv4": "1.3.0",