fix faraday connection

Author: cocomarine

app/controllers/api/subscriptions_controller.rb

@@ -61,15 +61,12 @@ def valid_turnstile_token?
       token = params.dig(:subscription, :turnstile_token)
       return false if token.blank?
 
-      response = Faraday.post(
+      response = turnstile_connection.post(
         API_URL,
         {
           secret: Rails.configuration.x.cloudflare_turnstile.secret_key,
           response: token,
           remoteip: request.remote_ip
-        },
-        {
-          request: { timeout: 5, open_timeout: 2 }
         }
       )
       unless response.success?
@@ -86,6 +83,14 @@ def valid_turnstile_token?
       true
     end
 
+    def turnstile_connection
+      Faraday.new do |f|
+        f.request :url_encoded
+        f.options.timeout = 5
+        f.options.open_timeout = 2
+      end
+    end
+
     def subscription_params
       params.require(:subscription).permit(:email, :test_opt_in, :privacy_policy, :turnstile_token)
     end