⬆️ Update postfixadmin/postfixadmin to v4.0.4

[renovate]

This PR contains the following updates:

Package	Update	Change
postfixadmin/postfixadmin	patch	v4.0.3 → v4.0.4

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Release Notes

postfixadmin/postfixadmin (postfixadmin/postfixadmin)

v4.0.4: Postfixadmin 4.0.4

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Full Changelog: postfixadmin/postfixadmin@v4.0.3...v4.0.4

• Add the github actions workflow to build a .tar.gz on release, assume PHP 7.4 (see #​999 and #​1026 see 225a55d).
• Update composer.json to ignore two security alerts from spomky-labs/otphp - PKSA-qv5y-crcz-9nxw and PKSA-kbc7-dq62-pt7d
  • TOTP is disabled by default in PostfixAdmin (see config.inc.php)
  • spomky-labs/otphp have not released a PHP 7.4 compatible version with a fix
  • Installations running PHP8.1 or higher can run "composer update" to install a fixed version of this package.
  • see GHSA-2jx3-65f3-xr8r (moderate)
  • see GHSA-g7m4-839x-ch6v (moderate)

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