build(deps): update @metascraper/helpers requirement

Updates the requirements on [@metascraper/helpers](https://github.com/microlinkhq/metascraper) to permit the latest version.
- [Release notes](https://github.com/microlinkhq/metascraper/releases)
- [Changelog](https://github.com/microlinkhq/metascraper/blob/master/CHANGELOG.md)
- [Commits](microlinkhq/metascraper@v5.5.0...v5.6.1)

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

package.json

@@ -35,7 +35,7 @@
     "request"
   ],
   "dependencies": {
-    "@metascraper/helpers": "~5.5.0",
+    "@metascraper/helpers": "~5.6.1",
     "cheerio": "~1.0.0-rc.3",
     "debug": "~4.1.1",
     "got": "~9.6.0",