Upgrade Comeonin to v5

https://github.com/riverrun/comeonin/blob/master/UPGRADE_v5.md

lib/pleroma/web/mongooseim/mongoose_im_controller.ex

@@ -5,7 +5,6 @@
 defmodule Pleroma.Web.MongooseIM.MongooseIMController do
   use Pleroma.Web, :controller
 
-  alias Comeonin.Pbkdf2
   alias Pleroma.Plugs.RateLimiter
   alias Pleroma.Repo
   alias Pleroma.User
@@ -28,7 +27,7 @@ defmodule Pleroma.Web.MongooseIM.MongooseIMController do
   def check_password(conn, %{"user" => username, "pass" => password}) do
     with %User{password_hash: password_hash, deactivated: false} <-
            Repo.get_by(User, nickname: username, local: true),
-         true <- Pbkdf2.checkpw(password, password_hash) do
+         true <- Pbkdf2.verify_pass(password, password_hash) do
       conn
       |> json(true)
     else