Event hook rediscache_discard_metrics not removed after deactivation

Hi,

We’ve noticed that your plugin doesn’t remove the rediscache_discard_metrics event hook when it’s deactivated.

Please can you add a deactivation function such as …

register_deactivation_hook( __FILE__, 'redis_deactivate' ); 

function redis_deactivate() {
    $timestamp = wp_next_scheduled( '<span style="font-family: inherit; font-size: 0.8rem;">rediscache_discard_metrics' );</span>
    wp_unschedule_event( $timestamp, '<span style="font-family: inherit; font-size: 0.8rem;">rediscache_discard_metrics' );</span>
}

Thank you.

Oliver