chore(backend): update dependency guardian to v2

apps/api/mix.exs

@@ -71,7 +71,7 @@ defmodule Api.MixProject do
       {:phoenix_live_reload, "~> 1.2", only: :dev},
       {:gettext, "~> 0.20"},
       {:jason, "~> 1.0"},
-      {:guardian, "~> 1.2.1"},
+      {:guardian, "~> 2.3.0"},
       {:cors_plug, "~> 2.0"},
       {:plug_cowboy, "~> 2.6.0", override: true},
       {:reverse_proxy_plug, "~> 2.1.1"},

apps/core/mix.exs

@@ -77,7 +77,7 @@ defmodule Core.MixProject do
       {:bourne, "~> 1.1"},
       {:flow, "~> 0.15.0"},
       {:joken, "~> 2.5.0"},
-      {:guardian, "~> 1.2.1"},
+      {:guardian, "~> 2.3.0"},
       {:arc, "~> 0.11.0"},
       {:arc_gcs, "~> 0.2.0"},
       {:porcelain, "~> 2.0"},

mix.lock

@@ -69,7 +69,7 @@
   "google_api_storage": {:hex, :google_api_storage, "0.34.0", "4811461a5065f8a5d59a7fe71efd9c491ba593d20743f0d6f4714153c1dd575f", [:mix], [{:google_gax, "~> 0.4", [hex: :google_gax, repo: "hexpm", optional: false]}], "hexpm", "b343f2f1688acd2e8a2302bed399a24d93626f8e8c809b358214bb0fb7d2669a"},
   "google_gax": {:hex, :google_gax, "0.4.1", "310105070626013712c56f8007b6ff7b4ead02ecad1efe7888350c6eaba52783", [:mix], [{:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:poison, ">= 3.0.0 and < 5.0.0", [hex: :poison, repo: "hexpm", optional: false]}, {:tesla, "~> 1.2", [hex: :tesla, repo: "hexpm", optional: false]}], "hexpm", "aef7dce7e04840c0e611f962475e3223d27d50ebd5e7d8e9e963c5e9e3b1ca79"},
   "goth": {:hex, :goth, "1.3.1", "f3e08a7f23ea8992ab92d2e1d5c72ea1a8fbd2fe3a46ad1b08d0620f71374fdc", [:mix], [{:finch, "~> 0.9", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:jose, "~> 1.10", [hex: :jose, repo: "hexpm", optional: false]}], "hexpm", "90326c2c0a7acda7fb75fc4a4f0cba84945d8fcb22694d36c9967cec8949937c"},
-  "guardian": {:hex, :guardian, "1.2.1", "bdc8dd3dbf0fb7216cb6f91c11831faa1a64d39cdaed9a611e37f2413e584983", [:mix], [{:jose, "~> 1.8", [hex: :jose, repo: "hexpm", optional: false]}, {:phoenix, "~> 1.3", [hex: :phoenix, repo: "hexpm", optional: true]}, {:plug, "~> 1.3.3 or ~> 1.4", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "723fc404edfb7bd5cba4cd83329b352037f102aa97468f44e58ac7f47c136a98"},
+  "guardian": {:hex, :guardian, "2.3.1", "2b2d78dc399a7df182d739ddc0e566d88723299bfac20be36255e2d052fd215d", [:mix], [{:jose, "~> 1.8", [hex: :jose, repo: "hexpm", optional: false]}, {:plug, "~> 1.3.3 or ~> 1.4", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "bbe241f9ca1b09fad916ad42d6049d2600bbc688aba5b3c4a6c82592a54274c3"},
   "hackney": {:hex, :hackney, "1.18.1", "f48bf88f521f2a229fc7bae88cf4f85adc9cd9bcf23b5dc8eb6a1788c662c4f6", [:rebar3], [{:certifi, "~> 2.9.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~> 6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~> 1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~> 1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~> 1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~> 0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "a4ecdaff44297e9b5894ae499e9a070ea1888c84afdd1fd9b7b2bc384950128e"},
   "hammer": {:hex, :hammer, "6.1.0", "f263e3c3e9946bd410ea0336b2abe0cb6260af4afb3a221e1027540706e76c55", [:make, :mix], [{:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}], "hexpm", "b47e415a562a6d072392deabcd58090d8a41182cf9044cdd6b0d0faaaf68ba57"},
   "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},