test: update specs

Author: santiagorodriguez96

spec/webauthn/authenticator_assertion_response_spec.rb

@@ -502,7 +502,7 @@
   end
 
   describe "migrated U2F credential" do
-    let(:origin) { "https://f69df4d9.ngrok.io" }
+    let(:origin) { "https://example.org" }
     let(:app_id) { "#{origin}/appid" }
     let(:migrated_credential) do
       WebAuthn::U2fMigrator.new(

spec/webauthn/public_key_credential_with_assertion_spec.rb

@@ -298,7 +298,7 @@
           ).to be_truthy
         end
 
-        context "if appid extension is not requested" do
+        context "if appid extension output is not present" do
           let(:public_key_credential) do
             WebAuthn::PublicKeyCredentialWithAssertion.new(
               type: credential_type,
@@ -331,7 +331,7 @@
           end.to raise_error("Unspecified legacy U2F AppID")
         end
 
-        context "if appid extension is not requested" do
+        context "if appid extension output is not present" do
           let(:public_key_credential) do
             WebAuthn::PublicKeyCredentialWithAssertion.new(
               type: credential_type,