Bump http-errors from 1.6.3 to 1.7.3

Bumps [http-errors](https://github.com/jshttp/http-errors) from 1.6.3 to 1.7.3.
- [Release notes](https://github.com/jshttp/http-errors/releases)
- [Changelog](https://github.com/jshttp/http-errors/blob/master/HISTORY.md)
- [Commits](jshttp/http-errors@1.6.3...1.7.3)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -11,7 +11,7 @@
     "cookie-parser": "~1.4.5",
     "debug": "~2.6.9",
     "express": "~4.17.1",
-    "http-errors": "~1.6.2",
+    "http-errors": "~1.7.3",
     "jade": "~1.11.0",
     "morgan": "~1.10.0"
   }