unsupported operand types int - string php 8.1

[farmani]

• Horizon Version: 5.7.17
• Laravel Version: 8.77.1
• PHP Version: 8.1.0
• Redis Driver & Version: predis/phpredis #.#.#
• Database Driver & Version:

Description:

[2022-01-01 13:10:46] local.ERROR: Unsupported operand types: int - string {"exception":"[object] (TypeError(code: 0): Unsupported operand types: int - string at /var/www/html/vendor/laravel/horizon/src/Repositories/RedisMetricsRepository.php:338)
[stacktrace]
#0 /var/www/html/vendor/laravel/horizon/src/Repositories/RedisMetricsRepository.php(67): Laravel\\Horizon\\Repositories\\RedisMetricsRepository->minutesSinceLastSnapshot()
#1 /var/www/html/vendor/laravel/horizon/src/Http/Controllers/DashboardStatsController.php(22): Laravel\\Horizon\\Repositories\\RedisMetricsRepository->jobsProcessedPerMinute()
#2 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): Laravel\\Horizon\\Http\\Controllers\\DashboardStatsController->index()
#3 /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(45): Illuminate\\Routing\\Controller->callAction()

/**
 * Get the number of minutes passed since the last snapshot.
 *
 * @return float
 */
protected function minutesSinceLastSnapshot()
{
    $lastSnapshotAt = $this->connection()->get('last_snapshot_at')
        ?: $this->storeSnapshotTimestamp();

    return max(
        (CarbonImmutable::now()->getTimestamp() - $lastSnapshotAt) / 60, 1
    );
}

it seems in the given block $lastSnapshotAt is string the workaround is casting it to int but the bug is probably in get() method which is probably return string value for last_snapshot_at and it must be converted to int

Steps To Reproduce: