Changes to Get Payment Methods

the response property data/items/checkout_name became nullable for the status 200

the response property data/items/currency_override became nullable for the status 200

the response property data/items/deleted_at became nullable for the status 200

the response property data/items/icon_image became nullable for the status 200

the response property data/items/icon_image_id became nullable for the status 200

the response property data/items/icon_image_url became nullable for the status 200

the response property data/items/max_amount became nullable for the status 200

the response property data/items/min_amount became nullable for the status 200

the response property links/items/url became nullable for the status 200

the response property next_page_url became nullable for the status 200

the response property prev_page_url became nullable for the status 200

added the optional property links/items/page to the response with the 200 status