Bump ex_doc from 0.29.2 to 0.29.3 (#1909)

Bumps [ex_doc](https://github.com/elixir-lang/ex_doc) from 0.29.2 to 0.29.3.
- [Release notes](https://github.com/elixir-lang/ex_doc/releases)
- [Changelog](https://github.com/elixir-lang/ex_doc/blob/v0.29.3/CHANGELOG.md)
- [Commits](elixir-lang/ex_doc@v0.29.2...v0.29.3)

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

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

mix.lock

@@ -43,7 +43,7 @@
   "ex_cldr_numbers": {:hex, :ex_cldr_numbers, "2.30.0", "55bc321a31c3d928c2bd0c31586ef8b848a7fae744315a1ef1a0fcc741ced8fc", [: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, "~> 2.35", [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", "ca2bfab9cadf7afb0474124ddb1d1b71307ddd8b2032aa6e345d4e9db9c304c8"},
   "ex_cldr_plugs": {:hex, :ex_cldr_plugs, "1.2.1", "fa8339e0be9be6296edfcacafc1ecddda80c88b33ef689c77f757e48b7e4b935", [:mix], [{:ex_cldr, "~> 2.29", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:gettext, "~> 0.19", [hex: :gettext, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "c99fa57e265e1746262d09f2f6612164c9706b612a546854f75122c7c14c72c9"},
   "ex_cldr_units": {:hex, :ex_cldr_units, "3.15.0", "3a834dfaf4daa0723cac165d528eacdbc3f9daec580f817b2847007fe07afdca", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:ex_cldr_lists, "~> 2.10", [hex: :ex_cldr_lists, repo: "hexpm", optional: false]}, {:ex_cldr_numbers, "~> 2.28", [hex: :ex_cldr_numbers, repo: "hexpm", optional: false]}, {:ex_doc, "~> 0.18", [hex: :ex_doc, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:ratio, "~> 2.4", [hex: :ratio, repo: "hexpm", optional: false]}], "hexpm", "bac7c3f6042482869dd67445adddaec2c263f561a8c2035eac7bd5f9d5ae1691"},
-  "ex_doc": {:hex, :ex_doc, "0.29.2", "dfa97532ba66910b2a3016a4bbd796f41a86fc71dd5227e96f4c8581fdf0fdf0", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "6b5d7139eda18a753e3250e27e4a929f8d2c880dd0d460cb9986305dea3e03af"},
+  "ex_doc": {:hex, :ex_doc, "0.29.3", "f07444bcafb302db86e4f02d8bbcd82f2e881a0dcf4f3e4740e4b8128b9353f7", [:mix], [{:earmark_parser, "~> 1.4.31", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "3dc6787d7b08801ec3b51e9bd26be5e8826fbf1a17e92d1ebc252e1a1c75bfe1"},
   "ex_phone_number": {:hex, :ex_phone_number, "0.3.0", "eb2d56320c71663c9620775c9b3f0c819bb92a015a88607fac6b41b118d9edf9", [:mix], [{:sweet_xml, "~> 0.7", [hex: :sweet_xml, repo: "hexpm", optional: false]}], "hexpm", "194ffd0a03340049a12abb41370c9820260db7cd288e9581e1b200aa01f28a5c"},
   "excoveralls": {:hex, :excoveralls, "0.16.0", "41f4cfbf7caaa3bc2cf411db6f89c1f53afedf0f1fe8debac918be1afa19c668", [:mix], [{:hackney, "~> 1.16", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "401205356482ab99fb44d9812cd14dd83b65de8e7ae454697f8b34ba02ecd916"},
   "expo": {:hex, :expo, "0.4.0", "bbe4bf455e2eb2ebd2f1e7d83530ce50fb9990eb88fc47855c515bfdf1c6626f", [:mix], [], "hexpm", "a8ed1683ec8b7c7fa53fd7a41b2c6935f539168a6bb0616d7fd6b58a36f3abf2"},