inspector: fix dead 'For help' URL printed by --inspect

When running 'node --inspect', the bootstrapping output includes:

    For help, see: https://nodejs.org/en/docs/inspector

That URL returns 404 on nodejs.org. The user-facing help guide for
debugging with --inspect now lives at
https://nodejs.org/en/learn/getting-started/debugging, so point the
message at that instead.

Refs: #62743

Author: MukundaKatta

src/inspector_socket_server.cc

@@ -248,7 +248,7 @@ void PrintDebuggerReadyMessage(
     }
   }
   fprintf(out, "For help, see: %s\n",
-          "https://nodejs.org/en/docs/inspector");
+          "https://nodejs.org/en/learn/getting-started/debugging");
   fflush(out);
 }