GTIN value not synced

[ibndawood]

🔎 Isolate the bug

• [x] I have confirmed this occurs in the most recent version of WordPress, WooCommerce, and Facebook for WooCommerce.
• [x] I have confirmed this occurs when only WooCommerce and Facebook for WooCommerce are active and when using a default WordPress or WooCommerce theme.

✍️ Describe the bug

With WooCommerce 9.2, the GTIN field is available. This field is not synced to Facebook.

🚶‍♀️ Steps to reproduce

1. Create a product.
2. Set the GTIN value in the product fields and save the product.
3. Navigate to commerce manager and view the synced product.
4. Notice that the GTIN attribute is missing.

✔️ Expected behavior

GTIN attribute should be synced.

🗃 Logs