Bump ex_doc from 0.30.2 to 0.30.3

Bumps [ex_doc](https://github.com/elixir-lang/ex_doc) from 0.30.2 to 0.30.3.
- [Changelog](https://github.com/elixir-lang/ex_doc/blob/main/CHANGELOG.md)
- [Commits](https://github.com/elixir-lang/ex_doc/commits)

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

Signed-off-by: dependabot[bot] <support@github.com>

mix.lock

@@ -47,7 +47,7 @@
   "ex_cldr_lists": {:hex, :ex_cldr_lists, "2.10.0", "4d4c9877da2d0417fd832907d69974e8328969f75fafc79b05ccf85f549f6281", [:mix], [{:ex_cldr_numbers, "~> 2.25", [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]}], "hexpm", "adc040cde7b97f7fd7c0b35dd69ddb6fcf607303ae6355bb1851deae1f8b0652"},
   "ex_cldr_numbers": {:hex, :ex_cldr_numbers, "2.31.1", "ad3e8a33e8cb8d048173f2c89cf6fcec9f1694d99f890a75bc745894c3868d5b", [: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", "a94c40f4bf60f0e69c34977f33caeda483677232699ab0a6a98025ea011fabcf"},
   "ex_cldr_units": {:hex, :ex_cldr_units, "3.16.2", "dbad303fba819981c578234e2aaf19d72efca16ea8b1c6ee46b26232cb45e232", [:mix], [{:cldr_utils, "~> 2.24", [hex: :cldr_utils, repo: "hexpm", optional: false]}, {: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, "~> 2.31", [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]}], "hexpm", "851095319fb3205c1549619da742cd53a2804c1d9c204cf84014021e2a6ea7e5"},
-  "ex_doc": {:hex, :ex_doc, "0.30.2", "7a3e63ddb387746925bbbbcf6e9cb00e43c757cc60359a2b40059aea573e3e57", [: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", "5ba8cb61d069012f16b50e575b0e3e6cf4083935f7444fab0d92c9314ce86bb6"},
+  "ex_doc": {:hex, :ex_doc, "0.30.3", "bfca4d340e3b95f2eb26e72e4890da83e2b3a5c5b0e52607333bf5017284b063", [: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", "fbc8702046c1d25edf79de376297e608ac78cdc3a29f075484773ad1718918b6"},
   "ex_json_schema": {:hex, :ex_json_schema, "0.9.3", "fc17c50d410fd99fa6e814e1aed60122d8ff2578b869d17a9db1ce1c621382b6", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}], "hexpm", "b79962d09cefd33001706255187bdb483a0c2b4442d5edc6822eb7574a8df0a8"},
   "ex_keccak": {:hex, :ex_keccak, "0.7.1", "0169f4b0c5073c5df61581d6282b12f1a1b764dcfcda4eeb1c819b5194c9ced0", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.6.1", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "c18c19f66b6545b4b46b0c71c0cc0079de84e30b26365a92961e91697e8724ed"},
   "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"},