All Submissions:

• Have you followed the WooCommerce Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

The goal of this PR is to add support for the Product by attribute template. It's related to this task and this PR in woocommerce-blocks: woocommerce/woocommerce-blocks#7660.

• This PR is a very minor change/addition and does not require testing instructions (if checked you can ignore/remove the next section).

How to test the changes in this Pull Request:

Non-FSE theme

1. Enable the Storefront theme (or any non-FSE theme).
2. Make sure on /wp-admin/edit.php?post_type=product&page=product_attributes that you have an attribute with the Enable archive? option checked. Otherwise, create one.
3. On /wp-admin/edit.php?post_type=product&page=product_attributes access the attribute terms by clicking on Configure terms.
4. If it does not have terms, create one.
5. Click on the View option under your term to go to the frontend page of the attribute, you should see the default template loaded.
6. Go to your theme and add a template file on the root with the name taxonomy-product_attribute.php and add some identifiable content. Save the file.
7. Reload the page you opened on step 5. You should see the content of the new taxonomy-product_attribute.php template file you added to the theme.

FSE theme

1. Clone and enable the trunk version of woocommerce-blocks (since the work on this PR is also needed Create the Products by Attribute template woocommerce-blocks#7660)
2. Enable the TT2 theme (or any other FSE theme).
3. Make sure on /wp-admin/edit.php?post_type=product&page=product_attributes that you have an attribute with the Enable archive? option checked. Otherwise, create one.
4. On /wp-admin/edit.php?post_type=product&page=product_attributes access the attribute terms by clicking on Configure terms.
5. If it does not have terms, create one.
6. Click on the View option under your term to go to the frontend page of the attribute, you should see the default template loaded.
7. Go to your theme and add a template file inside the templates folder of your theme called taxonomy-product_attribute.html and add some identifiable content. Save the file.
8. Reload the page you opened on step 6. You should see the content of the new taxonomy-product_attribute.html template file you added to the theme.

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you created a changelog file for each project being changed, ie pnpm --filter=<project> changelog add?

FOR PR REVIEWER ONLY:

• I have reviewed that everything is sanitized/escaped appropriately for any SQL or XSS injection possibilities. I made sure Linting is not ignored or disabled.