Update deps

Author: code-shoily

mix.exs

@@ -23,9 +23,9 @@ defmodule AdventOfCode.MixProject do
   # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
-      {:credo, "~> 1.6", only: [:dev, :test], runtime: false},
+      {:credo, "~> 1.7", only: [:dev, :test], runtime: false},
       {:floki, "~> 0.36"},
-      {:httpoison, "~> 2.2.0"},
+      {:httpoison, "~> 2.2"},
       {:jason, "~> 1.4"},
       {:libgraph, "~> 0.16"},
       {:aja, "~> 0.7"},