chore(deps-dev): bump ex_machina from 2.7.0 to 2.8.0 (#10351)

Bumps [ex_machina](https://github.com/beam-community/ex_machina) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/beam-community/ex_machina/releases)
- [Changelog](https://github.com/beam-community/ex_machina/blob/main/CHANGELOG.md)
- [Commits](https://github.com/beam-community/ex_machina/compare/v2.7.0...v2.8.0)

---
updated-dependencies:
- dependency-name: ex_machina
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

mix.lock

@@ -50,7 +50,7 @@
   "ex_doc": {:hex, :ex_doc, "0.34.1", "9751a0419bc15bc7580c73fde506b17b07f6402a1e5243be9e0f05a68c723368", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "d441f1a86a235f59088978eff870de2e815e290e44a8bd976fe5d64470a4c9d2"},
   "ex_json_schema": {:hex, :ex_json_schema, "0.10.2", "7c4b8c1481fdeb1741e2ce66223976edfb9bccebc8014f6aec35d4efe964fb71", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}], "hexpm", "37f43be60f8407659d4d0155a7e45e7f406dab1f827051d3d35858a709baf6a6"},
   "ex_keccak": {:hex, :ex_keccak, "0.7.5", "f3b733173510d48ae9a1ea1de415e694b2651f35c787e63f33b5ed0013fbfd35", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.7", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "8a5e1cb7f96fff5e480ff6a121477b90c4fd8c150984086dffd98819f5d83763"},
-  "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_machina": {:hex, :ex_machina, "2.8.0", "a0e847b5712065055ec3255840e2c78ef9366634d62390839d4880483be38abe", [: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", "79fe1a9c64c0c1c1fab6c4fa5d871682cb90de5885320c187d117004627a7729"},
   "ex_rlp": {:hex, :ex_rlp, "0.6.0", "985391d2356a7cb8712a4a9a2deb93f19f2fbca0323f5c1203fcaf64d077e31e", [:mix], [], "hexpm", "7135db93b861d9e76821039b60b00a6a22d2c4e751bf8c444bffe7a042f1abaf"},
   "ex_secp256k1": {:hex, :ex_secp256k1, "0.7.3", "489b6fd57fab5a7259ace927d8cb5171aad835e9c7279c2a859a0483cb069415", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.7", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "ea63159442f4d8143166cd1507da03edc43216d6e7c6bac4b416bdce04f0daa8"},
   "ex_utils": {:hex, :ex_utils, "0.1.7", "2c133e0bcdc49a858cf8dacf893308ebc05bc5fba501dc3d2935e65365ec0bf3", [:mix], [], "hexpm", "66d4fe75285948f2d1e69c2a5ddd651c398c813574f8d36a9eef11dc20356ef6"},