Allow Poison v6 to be used (open-api-spex#616)

mix.exs

@@ -69,7 +69,7 @@ defmodule OpenApiSpex.Mixfile do
       {:jason, "~> 1.0", optional: true},
       {:phoenix, "~> 1.3", only: [:dev, :test]},
       {:plug, "~> 1.7"},
-      {:poison, "~> 3.0 or ~> 4.0 or ~> 5.0", optional: true},
+      {:poison, "~> 3.0 or ~> 4.0 or ~> 5.0 or ~> 6.0", optional: true},
       {:ymlr, "~> 2.0 or ~> 3.0 or ~> 4.0 or ~> 5.0", optional: true}
     ]
   end

mix.lock

@@ -17,7 +17,7 @@
   "phoenix_view": {:hex, :phoenix_view, "1.1.2", "1b82764a065fb41051637872c7bd07ed2fdb6f5c3bd89684d4dca6e10115c95a", [:mix], [{:phoenix_html, "~> 2.14.2 or ~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}], "hexpm", "7ae90ad27b09091266f6adbb61e1d2516a7c3d7062c6789d46a7554ec40f3a56"},
   "plug": {:hex, :plug, "1.13.4", "addb6e125347226e3b11489e23d22a60f7ab74786befb86c14f94fb5f23ca9a4", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "06114c1f2a334212fe3ae567dbb3b1d29fd492c1a09783d52f3d489c1a6f4cf2"},
   "plug_crypto": {:hex, :plug_crypto, "1.2.2", "05654514ac717ff3a1843204b424477d9e60c143406aa94daf2274fdd280794d", [:mix], [], "hexpm", "87631c7ad914a5a445f0a3809f99b079113ae4ed4b867348dd9eec288cecb6db"},
-  "poison": {:hex, :poison, "5.0.0", "d2b54589ab4157bbb82ec2050757779bfed724463a544b6e20d79855a9e43b24", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "11dc6117c501b80c62a7594f941d043982a1bd05a1184280c0d9166eb4d8d3fc"},
+  "poison": {:hex, :poison, "6.0.0", "9bbe86722355e36ffb62c51a552719534257ba53f3271dacd20fbbd6621a583a", [:mix], [{:decimal, "~> 2.1", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "bb9064632b94775a3964642d6a78281c07b7be1319e0016e1643790704e739a2"},
   "telemetry": {:hex, :telemetry, "1.0.0", "0f453a102cdf13d506b7c0ab158324c337c41f1cc7548f0bc0e130bbf0ae9452", [:rebar3], [], "hexpm", "73bc09fa59b4a0284efb4624335583c528e07ec9ae76aca96ea0673850aec57a"},
   "ymlr": {:hex, :ymlr, "4.1.0", "9d3f6765b0f6f9ebc0f1c7a61385c85178e36529066280d3d427fa8bbc0b175c", [:mix], [], "hexpm", "49dd3fc88f136f4c71a3e812f89e04570cc92be94b1bf57ede13cc4caaa92332"},
 }