bug #18978 Fix: Build (OskarStark)

This PR was merged into the 6.3 branch.

Discussion
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Fix: Build

![CleanShot 2023-10-03 at 21 02 01@2x](https://github.com/symfony/symfony-docs/assets/995707/ca01b4d2-9c77-40e3-a002-3c1d8cf63ffb)

Commits
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9f7f0bc Fix: Build

Author: OskarStark

security.rst

@@ -2830,3 +2830,4 @@ Authorization (Denying Access)
 .. _`HTTP Basic authentication`: https://en.wikipedia.org/wiki/Basic_access_authentication
 .. _`Login CSRF attacks`: https://en.wikipedia.org/wiki/Cross-site_request_forgery#Forging_login_requests
 .. _`PHP date relative formats`: https://www.php.net/manual/en/datetime.formats.php#datetime.formats.relative
+.. _`SensitiveParameter PHP attribute`: https://www.php.net/manual/en/class.sensitiveparameter.php