nrepl-bencode doesn't sort dictionaries by key

[alexander-yakushev]

From https://clojurians.slack.com/archives/C17JYSA3H/p1741890145125339.

It appears that CIDER doesn't adhere to Bencode spec which requires dictionary keys to be sorted alphabetically. This hasn't been a problem so far because the bencode reader on nREPL side doesn't validate the order of keys. Still, it will be rigorous to produce correct values according to the selected format.

Expected behavior

(nrepl-bencode '("b" 2 "a" 1))
=> "l1:ai1e1:bi2ee"

Actual behavior

(nrepl-bencode '("b" 2 "a" 1))
=> "l1:bi2e1:ai1ee"