docs: change tested up and the plugin tag to make a test fail

[MaferMazu]

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Checklist for Merge

• Tested in a remote environment
• Updated documentation
• Rebased master/main
• Squashed commits

[openedx-webhooks]

Thanks for the pull request, @MaferMazu!

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[MaferMazu]

This PR was open for testing purposes. I'll close it.