php84: 8.4.4 -> 8.4.5

https://www.php.net/ChangeLog-8.php#8.4.5

Fixes CVE-2024-11235, GHSA-wg4p-4hqh-c3g9, CVE-2025-1219, CVE-2025-1736, CVE-2025-1861, CVE-2025-1734 and CVE-2025-1217.

pkgs/development/interpreters/php/8.4.nix

···
   base = callPackage ./generic.nix (
     _args
     // {
-      version = "8.4.4";
-      hash = "sha256-GSoyX9PKCbbFKN1gFO4H2APDFiUU1LsNPgmB0ArHAOw=";
+      version = "8.4.5";
+      hash = "sha256-k3jHiIfQzXRi/FwX8t4wyFLyD3nSh5XiVz/jJQ05Q24=";
     }
   );
 in