Do not add redis SET data in span description when `set_default_pii=False`

[antonpirker]

Problem Statement

Currently the redis integration records a span for all redis commands. This is good.
But when send_default_pii=False the value of the redis SET command (https://redis.io/commands/set/) should be redacted.

Solution Brainstorm

do it

[sentrivana]

Closing this as done since the PR was merged and the change has already been released