As per the documentation (https://redis.io/docs/latest/commands/client-setinfo):

Client libraries are expected to pipeline this command after authentication on all connections and ignore failures since they could be connected to an older version that doesn't support them.

Turns out different versions of redis server return different errors, so its better to catch all.

fixes #2968

Private class fields (e.g., #execute) cause runtime errors when accessed from contexts where `this` is not the exact instance, triggering “Receiver must be an instance of class RedisCluster”.

fixes #2967

* modified legacy sentinel tests

* Adapt legacy sentinel tests to use the new test utils

* modify tmpdir creation

* reduced sentinel config timeouts, removed unneeded comment

---------

Co-authored-by: H. Temelski <hristo.temelski@redis.com>