[sr-dev] [kamailio/kamailio] Avoid full table scan for dispatcher table using db_redis using ds_reload() from config script In (#2149)

[Joel Serrano]

# Description

Trying to avoid getting this warning:

Nov 22 20:36:35 test COPS[25531]: WARNING: db_redis [redis_dbase.c:1098]: db_redis_perform_query(): performing full table scan on table 'dispatcher' while performing query

### Troubleshooting

Having: 
```
modparam("db_redis", "keys", "version=entry:table_name")
modparam("db_redis", "keys", "dispatcher=entry:id")
```

And debug logs showing the key being found:

```

#### Reproduction

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#### Debugging Data

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```
(paste your debugging data here)
```

#### Log Messages

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#### SIP Traffic

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### Possible Solutions

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### Additional Information

  * **Kamailio Version** - output of `kamailio -v`

```
(paste your output here)
```

* **Operating System**:

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```
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```


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