Add support for CLIENT SETINFO

[SoulPancake]

• Fixes Add support for new redis command CLIENT SETINFO #2520

[SoulPancake]

@monkey92t Would we consider merging #2483 before continuing on this
As it can be useful to test this command
Or alternatively do you have a suggestion on how we can test this?

[monkey92t]

CLIENT-SETINFO is similar to #2492, it represents the state of the connection, not just the command.

What do you think we should do?

[SoulPancake]

According to the docs
We should be able to test these by checking whether those version/fields are there in the client info right?

[monkey92t]

It is tied to the network connection...

client -> call cmd -> conn-1 -> client setinfo lib-name test-name
client -> call cmd -> conn-2 -> client info -> lib-name ->""

Because we only set lib-name for conn-1, when we execute client-info, unless we are lucky and conn-1 is selected in the connection pool, we cannot get the value of lib-name