[Feature Request]: Support UNLINK command for bulk delete actions

[maruloop]

Problem description (Describe the problem you would like to solve with this feature request or suggested idea).

If I understand correctly, the current bulk-delete implementation calls DEL commands with multiple keys.
It could affect the performance impact.

How often do you encounter this problem (Describe how frequently this problem occurs).

When we want to delete so many keys at once, it's not so often.

Alternatives considered (Describe any alternative features or products you've considered).

As a workaround, Redis admin can enable lazyfree-lazy-user-del.

Additional information (Add any other context or details here).