Fixed Function in Payment_Gateway.php

[DAnn2012]

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• Does your code follow the WooCommerce Sniffs variant of WordPress coding standards?
• Have you written new tests for your changes, as applicable?
• Have you successfully run tests with your changes locally?
• Will this change require new documentation or changes to existing documentation?

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Changes proposed in this Pull Request:

This PR updates three lines of code to correct the order of sprintf() and wp_kses_post(). The previous implementation applied wp_kses_post() before sprintf(), which could interfere with placeholder replacement and lead to incorrect output. The updated version now formats the string first and sanitizes it afterward, ensuring proper handling of the %1$s placeholder and producing the expected message.

Steps to test the changes in this Pull Request:

Changelog entry

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Fixed Function in Payment_Gateway.php

[DAnn2012]

Hello @peterwilsoncc

When you can, could you take a look at this PR of mine?

Thanks.