generate resources for 2023_04 release

[nelsonwittwer]

Description

1. Adds 2023_04 API version clsoing A new release of the Shopify API is due soon #1132 / A new release of the Shopify API occurred #1135
2. Generates REST resources for new API version
3. Introduces a safer create_instance flow based off of new data structures returned from Core.
4. Fixes several typing issues that were causing several REST resources to be unusable. These upstream fixes will address the follow issues:

• Resolve ActionView::Template::Error on Boolean Metafields values access using REST client #1080
• Order.subtotal_price object type Error - Expected type T.nilable(Float) #1095
• Wrong type definition for price_based_shipping_rates and weight_based_shipping_rates of the ShippingZone REST resource #1099
• Wrong type definition for the profile_id attribute of the ShippingZone REST resource #1100
• ShopifyAPI::GiftCard balance and initial_value fail with a TypeError #1101
• Unable to create ShopifyAPI::PaymentTransaction object #1112

How has this been tested?

• Rest resource tests have been run.
• Generated a new app with this topic branch. Was able to install app and make API call

Checklist:

• My commit message follow the pattern described in here
• I have performed a self-review of my own code.
• I have added tests that prove my fix is effective or that my feature works.
• I have updated the project documentation.
• I have added a changelog line.

[paulomarg]

LGTM, skipping over the auto-generated stuff :)