Bump cors_plug from 1.5.2 to 2.0.0

Bumps [cors_plug](https://github.com/mschae/cors_plug) from 1.5.2 to 2.0.0.
- [Release notes](https://github.com/mschae/cors_plug/releases)
- [Changelog](https://github.com/mschae/cors_plug/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mschae/cors_plug/compare/v1.5.2...v2.0.0)

mix.exs

@@ -60,7 +60,7 @@ defmodule Mobilizon.Mixfile do
       {:guardian_db, "~> 1.1"},
       {:comeonin, "~> 4.0"},
       {:argon2_elixir, "~> 1.2"},
-      {:cors_plug, "~> 1.2"},
+      {:cors_plug, "~> 2.0"},
       {:ecto_autoslug_field, "~> 0.3"},
       {:rsa_ex, "~> 0.1"},
       {:geo, "~> 3.0"},

mix.lock

@@ -14,7 +14,7 @@
   "combine": {:hex, :combine, "0.10.0", "eff8224eeb56498a2af13011d142c5e7997a80c8f5b97c499f84c841032e429f", [:mix], [], "hexpm"},
   "comeonin": {:hex, :comeonin, "4.1.1", "c7304fc29b45b897b34142a91122bc72757bc0c295e9e824999d5179ffc08416", [:mix], [{:argon2_elixir, "~> 1.2", [hex: :argon2_elixir, repo: "hexpm", optional: true]}, {:bcrypt_elixir, "~> 0.12.1 or ~> 1.0", [hex: :bcrypt_elixir, repo: "hexpm", optional: true]}, {:pbkdf2_elixir, "~> 0.12", [hex: :pbkdf2_elixir, repo: "hexpm", optional: true]}], "hexpm"},
   "connection": {:hex, :connection, "1.0.4", "a1cae72211f0eef17705aaededacac3eb30e6625b04a6117c1b2db6ace7d5976", [:mix], [], "hexpm"},
-  "cors_plug": {:hex, :cors_plug, "1.5.2", "72df63c87e4f94112f458ce9d25800900cc88608c1078f0e4faddf20933eda6e", [:mix], [{:plug, "~> 1.3 or ~> 1.4 or ~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
+  "cors_plug": {:hex, :cors_plug, "2.0.0", "238ddb479f92b38f6dc1ae44b8d81f0387f9519101a6da442d543ab70ee0e482", [:mix], [{:plug, "~> 1.3 or ~> 1.4 or ~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
   "cowboy": {:hex, :cowboy, "1.1.2", "61ac29ea970389a88eca5a65601460162d370a70018afe6f949a29dca91f3bb0", [:rebar3], [{:cowlib, "~> 1.0.2", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.3.2", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm"},
   "cowlib": {:hex, :cowlib, "1.0.2", "9d769a1d062c9c3ac753096f868ca121e2730b9a377de23dec0f7e08b1df84ee", [:make], [], "hexpm"},
   "credo": {:hex, :credo, "1.0.0", "aaa40fdd0543a0cf8080e8c5949d8c25f0a24e4fc8c1d83d06c388f5e5e0ea42", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},