when register, keep the original redis options, only overwrite prefix

[nthsky]

current:
when register, the origin redis option is overwritten, leaving only the prefix.

expect:
keep the origin redis option, only overwrite prefix

explanation:
when using redis sentinel with predis driver, the config is like:

        'default' => [
            'redis-sentinel:26379',
            'options' => [
                'replication' => 'sentinel',
                'service' => 'mymaster',
                'parameters' => [
                    'password' => 'xxxxxx',
                    'database' => 0,
                ],
            ]
        ]

the current situation: when using horizon, the sentinel option will be overwritten and cannot create connection correctly. And it will throw exception like:

ERR unknown command 'ZADD', with args beginning with: 'laravel_horizon:recent_jobs' '-1657159739.0121' 'a6ea2c53-565b-4f1b-927c-f5f1d2b8af34'

It's expected that the original option is preserved then the sentinel is connect correctly.