fix: provide domain in session, passkey and u2f (#6097)

This fix provides a possibility to pass a domain on the session, which
will be used (as rpID) to create a passkey / u2f assertion and
attestation. This is useful in cases where the login UI is served under
a different domain / origin than the ZITADEL API.

internal/integration/client.go

@@ -89,6 +89,7 @@ func (s *Tester) RegisterUserPasskey(ctx context.Context, userID string) {
 	pkr, err := s.Client.UserV2.RegisterPasskey(ctx, &user.RegisterPasskeyRequest{
 		UserId: userID,
 		Code:   reg.GetCode(),
+		Domain: s.Config.ExternalDomain,
 	})
 	logging.OnError(err).Fatal("create user passkey")
 	attestationResponse, err := s.WebAuthN.CreateAttestationResponse(pkr.GetPublicKeyCredentialCreationOptions())