nixos/php-fpm: enable systemd watchdog

Changed files
+1
nixos
modules
services
web-servers
phpfpm
+1
nixos/modules/services/web-servers/phpfpm/default.nix
···
RuntimeDirectory = "phpfpm";
RuntimeDirectoryPreserve = true; # Relevant when multiple processes are running
Restart = "always";
+
WatchdogSec = 15;
};
}
) cfg.pools;