docs(chore): update list of supported PHP versions

Signed-off-by: Sacha Telgenhof <me@sachatelgenhof.com>

Author: stelgenhof

SECURITY.md

@@ -11,7 +11,7 @@ The following versions are supported with security updates:
 | <1.0   | :x: |
 
 As for supported PHP versions, this project only supports the actively supported versions of PHP and versions of PHP
-that only receive critical security updates. Currently, that is PHP 8.1, 8.2, 8.3, 8.4 and 8.5.
+that only receive critical security updates. Currently, that is PHP 8.2, 8.3, 8.4 and 8.5.
 Please refer to the [supported versions](https://www.php.net/supported-versions.php) page, to find more details.
 When a version of PHP becomes EOL, generally a new release of this project will be issued that sunsets the
 support of that retired PHP version.