Fix "expires" option cannot have a year greater than 9999

This fixes the exception: '"expires" option cannot have a year greater
than 9999', which happens on upgrade from Debian 11 to 12. The session
timeout in the DB is 9999999999999, so we constrain the value.

lib/init.php

@@ -369,7 +369,7 @@
 	}
 	// update cookie lifetime
 	$cookie_params = [
-		'expires' => time() + Settings::Get('session.sessiontimeout'),
+		'expires' => time() + min(Settings::Get('session.sessiontimeout'), 31536000),
 		'path' => '/',
 		'domain' => UI::getCookieHost(),
 		'secure' => UI::requestIsHttps(),