Plugin adds weird entry into Yoast sitemap.xml file

Somehow, this plugin causes an entry to be added to my website’s sitemap.xml that is being generated by Yoast SEO.

When I open /sitemap.xml I am seeing:

https://<domain>/et_code_snippet_type-sitemap.xml 2023-04-26 15:46 +00:00

And when I click on that entry, I see an entry with the URL:

https://<domain>/et_code_snippet_type/et_code_snippet_css/

Clicking this URL takes me to a 404 page.

Where is this coming from, and how can I disable it from being indexed by my sitemap.xml?

 

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