allow the user choose the namespace of the redis

[DiogoMarques2003]

Checklist

• run npm run test and npm run benchmark
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[mcollina]

Please revert this, we'll bump when releasing.

[mcollina]

Thanks for opening a PR! Can you please add a unit test?

[DiogoMarques2003]

Thanks for opening a PR! Can you please add a unit test?

Unit teste for what ?
I don't think it is necessary to add any more unit tests since it was only added an optional parameter in the options

[Eomm]

Unit teste for what ?

That the redis key is what you expext

I don't think it is necessary to add any more unit tests since it was only added an optional parameter in the options

In this way, we can't assure that this feature will be removed in future.

[DiogoMarques2003]

@Eomm is this ? Can you check pls

[mcollina]

lgtm