Reduce `RSpec/MultipleExpectations` in captcha feature spec (#29226)

spec/features/captcha_spec.rb

@@ -19,12 +19,10 @@ describe 'email confirmation flow when captcha is enabled' do
       # It presents the user with a captcha form
       expect(page).to have_title(I18n.t('auth.captcha_confirmation.title'))
 
-      # It does not confirm the user just yet
-      expect(user.reload.confirmed?).to be false
-
       # It redirects to app and confirms user
-      click_on I18n.t('challenge.confirm')
-      expect(user.reload.confirmed?).to be true
+      expect { click_on I18n.t('challenge.confirm') }
+        .to change { user.reload.confirmed? }.from(false).to(true)
+
       expect(page).to have_current_path(/\A#{client_app.confirmation_redirect_uri}/, url: true)
 
       # Browsers will generally reload the original page upon redirection
@@ -32,8 +30,9 @@ describe 'email confirmation flow when captcha is enabled' do
       visit "/auth/confirmation?confirmation_token=#{user.confirmation_token}&redirect_to_app=true"
 
       # It presents a page with a link to the app callback
-      expect(page).to have_content(I18n.t('auth.confirmations.registration_complete', domain: 'cb6e6126.ngrok.io'))
-      expect(page).to have_link(I18n.t('auth.confirmations.clicking_this_link'), href: client_app.confirmation_redirect_uri)
+      expect(page)
+        .to have_content(I18n.t('auth.confirmations.registration_complete', domain: 'cb6e6126.ngrok.io'))
+        .and have_link(I18n.t('auth.confirmations.clicking_this_link'), href: client_app.confirmation_redirect_uri)
     end
   end