SETEX command is regarded as deprecated since 2.6.12

[beeyev]

SETEX is deprecated
Could you please update the code to support SET ?

    public function storeData($key, $data, $expiration)
    {
        $store = serialize(array('data' => $data, 'expiration' => $expiration));
        if (is_null($expiration)) {
            return $this->redis->set($this->makeKeyString($key), $store);
        } else {
            $ttl = $expiration - time();

            // Prevent us from even passing a negative ttl'd item to redis,
            // since it will just round up to zero and cache forever.
            if ($ttl < 1) {
                return true;
            }

            return $this->redis->setex($this->makeKeyString($key), $ttl, $store);
        }
    }

https://github.com/tedious/Stash/blob/main/src/Stash/Driver/Redis.php#L213