fix: Claiming respWebDesignCert tests (#17102)

Changed the "Build a Personal Portfolio" id in the
responsive-web-design-certificate tests to the correct id.

Users are now capable of claiming the "Responsive Web Design Certificate".

seed/challenges/09-certificates/responsive-web-design-certificate.json

@@ -28,10 +28,10 @@
           "title": "Build a Technical Documentation Page"
         },
         {
-          "id": "587d78b0367417b2b2512b06",
+          "id": "bd7158d8c242eddfaeb5bd13",
           "title": "Build a Personal Portfolio Webpage"
         }
       ]
     }
   ]
-}
+}