CLIENT KILL and multi-threaded

[BobEQAlpha]

https://docs.keydb.dev/docs/commands#client-kill

Need to fix this paragraph somehow as KeyDB is multithreaded

Due to the single-threaded nature of KeyDB, it is not possible to kill a client connection while it is executing a command. From the client point of view, the connection can never be closed in the middle of the execution of a command. However, the client will notice the connection has been closed only when the next command is sent (and results in network error).