Fix LemonSqueezy sync subscription method

[itsameandrea]

Pull Request

Summary:
There's a bug in the Pay::LemonSqueezy::Subscription#sync method that prevents it from succeding.

Related Issue:
#1086

Description:
Just fixed a simple syntax error that I found while testing subscription flows in a LemonSqueezy environment.

Testing:
Tested the changes by switching the gem installation to my branch

Screenshots (if applicable):
Here are the logs that show the successful webhook processing

TRANSACTION (0.1ms)  commit transaction
07:40:53 web.1  | [ActiveJob] Enqueued Pay::Webhooks::ProcessJob (Job ID: bc9605ee-b9ce-4189-9137-6fa2d8731b03) to Async(default) with arguments: #<GlobalID:0x0000000140abed98 @uri=#<URI::GID gid://daisy-solid-template/Pay::Webhook/39>>
07:40:53 web.1  | Completed 200 OK in 143ms (ActiveRecord: 1.0ms | Allocations: 9844)
07:40:53 web.1  | 
07:40:53 web.1  | 
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   Pay::Webhook Load (0.1ms)  SELECT "pay_webhooks".* FROM "pay_webhooks" WHERE "pay_webhooks"."id" = ? LIMIT ?  [["id", 39], ["LIMIT", 1]]
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03] Performing Pay::Webhooks::ProcessJob (Job ID: bc9605ee-b9ce-4189-9137-6fa2d8731b03) from Async(default) enqueued at 2024-10-11T05:40:53.160103000Z with arguments: #<GlobalID:0x0000000137dec2f8 @uri=#<URI::GID gid://daisy-solid-template/Pay::Webhook/39>>
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   Pay::Customer Load (0.1ms)  SELECT "pay_customers".* FROM "pay_customers" WHERE "pay_customers"."processor" = ? AND "pay_customers"."processor_id" = ? LIMIT ?  [["processor", "lemon_squeezy"], ["processor_id", "3906555"], ["LIMIT", 1]]
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   Pay::PaymentMethod Load (0.0ms)  SELECT "pay_payment_methods".* FROM "pay_payment_methods" WHERE "pay_payment_methods"."customer_id" = ?  [["customer_id", 3906555]]
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   Pay::LemonSqueezy::Subscription Load (0.0ms)  SELECT "pay_subscriptions".* FROM "pay_subscriptions" WHERE "pay_subscriptions"."type" = ? AND "pay_subscriptions"."customer_id" = ? AND "pay_subscriptions"."processor_id" = ? LIMIT ?  [["type", "Pay::LemonSqueezy::Subscription"], ["customer_id", 11], ["processor_id", "651762"], ["LIMIT", 1]]
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   TRANSACTION (0.0ms)  begin transaction
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   Pay::LemonSqueezy::Subscription Load (0.6ms)  SELECT "pay_subscriptions".* FROM "pay_subscriptions" WHERE "pay_subscriptions"."type" = ? AND "pay_subscriptions"."id" = ? LIMIT ?   [["type", "Pay::LemonSqueezy::Subscription"], ["id", 3], ["LIMIT", 1]]
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   Pay::Subscription Exists? (0.1ms)  SELECT 1 AS one FROM "pay_subscriptions" WHERE "pay_subscriptions"."processor_id" = ? AND "pay_subscriptions"."id" != ? AND "pay_subscriptions"."customer_id" = ? LIMIT ?  [["processor_id", "651762"], ["id", 3], ["customer_id", 11], ["LIMIT", 1]]
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   TRANSACTION (0.0ms)  commit transaction
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   TRANSACTION (0.0ms)  begin transaction
07:40:53 web.1  | [ActiveJob] [Pay::Webhooks::ProcessJob] [bc9605ee-b9ce-4189-9137-6fa2d8731b03]   Pay::Webhook Destroy (0.4ms)  DELETE FROM "pay_webhooks" WHERE "pay_webhooks"."id" = ?  [["id", 39]]

Checklist:

• Code follows the project's coding standards
• Tests have been added or updated to cover the changes
• All existing tests pass
• Conforms to the contributing guidelines