Bump ex_machina from 2.2.2 to 2.4.0

Bumps [ex_machina](https://github.com/thoughtbot/ex_machina) from 2.2.2 to 2.4.0.
- [Release notes](https://github.com/thoughtbot/ex_machina/releases)
- [Changelog](https://github.com/thoughtbot/ex_machina/blob/master/CHANGELOG.md)
- [Commits](beam-community/ex_machina@v2.2.2...v2.4.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

mix.exs

@@ -74,7 +74,7 @@ defmodule Mipha.Mixfile do
       {:remote_ip, "~> 0.1.4"},
       {:plug_attack, "~> 0.3.1"},
       {:sentry, "~> 6.4"},
-      {:ex_machina, "~> 2.2.2"},
+      {:ex_machina, "~> 2.4.0"},
       {:excoveralls, "~> 0.10", only: :test}
     ]
   end

mix.lock

@@ -21,7 +21,7 @@
   "ecto_sql": {:hex, :ecto_sql, "3.4.5", "30161f81b167d561a9a2df4329c10ae05ff36eca7ccc84628f2c8b9fa1e43323", [:mix], [{:db_connection, "~> 2.2", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.4.3", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.3.0 or ~> 0.4.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.15.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.0", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "31990c6a3579b36a3c0841d34a94c275e727de8b84f58509da5f1b2032c98ac2"},
   "elixir_make": {:hex, :elixir_make, "0.6.1", "8faa29a5597faba999aeeb72bbb9c91694ef8068f0131192fb199f98d32994ef", [:mix], [], "hexpm", "35d33270680f8d839a4003c3e9f43afb595310a592405a00afc12de4c7f55a18"},
   "eternal": {:hex, :eternal, "1.2.1", "d5b6b2499ba876c57be2581b5b999ee9bdf861c647401066d3eeed111d096bc4", [:mix], [], "hexpm", "b14f1dc204321429479c569cfbe8fb287541184ed040956c8862cb7a677b8406"},
-  "ex_machina": {:hex, :ex_machina, "2.2.2", "d84217a6fb7840ff771d2561b8aa6d74a0d8968e4b10ecc0d7e9890dc8fb1c6a", [: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", "0d718f9b2dc1b952eab6223fd5fbe1698be7b6012a5717c66efe8a7920c43ac9"},
+  "ex_machina": {:hex, :ex_machina, "2.4.0", "09a34c5d371bfb5f78399029194a8ff67aff340ebe8ba19040181af35315eabb", [: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", "a20bc9ddc721b33ea913b93666c5d0bdca5cbad7a67540784ae277228832d72c"},
   "excoveralls": {:hex, :excoveralls, "0.13.1", "b9f1697f7c9e0cfe15d1a1d737fb169c398803ffcbc57e672aa007e9fd42864c", [:mix], [{:hackney, "~> 1.16", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "b4bb550e045def1b4d531a37fb766cbbe1307f7628bf8f0414168b3f52021cce"},
   "exmoji": {:hex, :exmoji, "0.2.2", "fae4e012d3b78771436d19ff8922219bd93d9115364226da5cc5d4703d5d879f", [:mix], [{:poison, "~> 1.5", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm", "d0123ec6fd14506da93b0e8fdb7c2efa819cc69addeb56a78f3c1e0b8a09d015"},
   "faker": {:hex, :faker, "0.10.0", "367c2ae47e7b4ac6410e1eaa880c07b5fe4194476f697d37ac1ce25f3058aae2", [:mix], [], "hexpm", "7f1cf111b04b25feac10d2b9483a6d8c0a4a85899e6f7b06f10d22503b921e77"},