Bump ex_doc from 0.31.0 to 0.31.1 (#3693)

Bumps [ex_doc](https://github.com/elixir-lang/ex_doc) from 0.31.0 to 0.31.1.
- [Release notes](https://github.com/elixir-lang/ex_doc/releases)
- [Changelog](https://github.com/elixir-lang/ex_doc/blob/main/CHANGELOG.md)
- [Commits](https://github.com/elixir-lang/ex_doc/compare/v0.31.0...v0.31.1)

---
updated-dependencies:
- dependency-name: ex_doc
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

mix.lock

@@ -43,7 +43,7 @@
   "ex_cldr": {:hex, :ex_cldr, "2.37.5", "9da6d97334035b961d2c2de167dc6af8cd3e09859301a5b8f49f90bd8b034593", [:mix], [{:cldr_utils, "~> 2.21", [hex: :cldr_utils, repo: "hexpm", optional: false]}, {:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:gettext, "~> 0.19", [hex: :gettext, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: true]}], "hexpm", "74ad5ddff791112ce4156382e171a5f5d3766af9d5c4675e0571f081fe136479"},
   "ex_cldr_currencies": {:hex, :ex_cldr_currencies, "2.15.1", "e92ba17c41e7405b7784e0e65f406b5f17cfe313e0e70de9befd653e12854822", [:mix], [{:ex_cldr, "~> 2.34", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "31df8bd37688340f8819bdd770eb17d659652078d34db632b85d4a32864d6a25"},
   "ex_cldr_numbers": {:hex, :ex_cldr_numbers, "2.32.3", "b631ff94c982ec518e46bf4736000a30a33d6b58facc085d5f240305f512ad4a", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:digital_token, "~> 0.3 or ~> 1.0", [hex: :digital_token, repo: "hexpm", optional: false]}, {:ex_cldr, "~> 2.37", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:ex_cldr_currencies, ">= 2.14.2", [hex: :ex_cldr_currencies, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "7b626ff1e59a0ec9c3c5db5ce9ca91a6995e2ab56426b71f3cbf67181ea225f5"},
-  "ex_doc": {:hex, :ex_doc, "0.31.0", "06eb1dfd787445d9cab9a45088405593dd3bb7fe99e097eaa71f37ba80c7a676", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.1", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "5350cafa6b7f77bdd107aa2199fe277acf29d739aba5aee7e865fc680c62a110"},
+  "ex_doc": {:hex, :ex_doc, "0.31.1", "8a2355ac42b1cc7b2379da9e40243f2670143721dd50748bf6c3b1184dae2089", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.1", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "3178c3a407c557d8343479e1ff117a96fd31bafe52a039079593fb0524ef61b0"},
   "ex_json_logger": {:hex, :ex_json_logger, "1.4.0", "ad1dcc1cfe6940ee1d9d489b20757c89769626ce34c4957548d6fbe155cd96f1", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "7548a1ecba290746e06214d2b3d8783c76760c779a8903a8e44bfd23a7340444"},
   "ex_machina": {:hex, :ex_machina, "2.7.0", "b792cc3127fd0680fecdb6299235b4727a4944a09ff0fa904cc639272cd92dc7", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm", "419aa7a39bde11894c87a615c4ecaa52d8f107bbdd81d810465186f783245bf8"},
   "ex_money": {:hex, :ex_money, "5.15.2", "660139ab73313c2c9ca9b7b4496bbee62e6b0ba87780d2a9af135e0e8a2c6feb", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:ex_cldr_numbers, "~> 2.31", [hex: :ex_cldr_numbers, repo: "hexpm", optional: false]}, {:gringotts, "~> 1.1", [hex: :gringotts, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.0 or ~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:poison, "~> 3.0 or ~> 4.0 or ~> 5.0", [hex: :poison, repo: "hexpm", optional: true]}], "hexpm", "59b96d83afa69070c595c9afd78ed0802e211c8741a5644e05ee44567f480845"},