Bump ethereumex from 0.12.1 to 0.12.2 (#227)

Bumps [ethereumex](https://github.com/exthereum/ethereumex) from 0.12.1 to 0.12.2.
- [Release notes](https://github.com/exthereum/ethereumex/releases)
- [Changelog](https://github.com/mana-ethereum/ethereumex/blob/master/CHANGELOG.md)
- [Commits](mana-ethereum/ethereumex@0.12.1...0.12.2)

---
updated-dependencies:
- dependency-name: ethereumex
  dependency-version: 0.12.2
  dependency-type: direct:production
  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>

Author: dependabot[bot]

mix.lock

@@ -1,11 +1,11 @@
 %{
   "bunt": {:hex, :bunt, "1.0.0", "081c2c665f086849e6d57900292b3a161727ab40431219529f13c4ddcf3e7a44", [:mix], [], "hexpm", "dc5f86aa08a5f6fa6b8096f0735c4e76d54ae5c9fa2c143e5a1fc7c1cd9bb6b5"},
-  "castore": {:hex, :castore, "1.0.14", "4582dd7d630b48cf5e1ca8d3d42494db51e406b7ba704e81fbd401866366896a", [:mix], [], "hexpm", "7bc1b65249d31701393edaaac18ec8398d8974d52c647b7904d01b964137b9f4"},
+  "castore": {:hex, :castore, "1.0.15", "8aa930c890fe18b6fe0a0cff27b27d0d4d231867897bd23ea772dee561f032a3", [:mix], [], "hexpm", "96ce4c69d7d5d7a0761420ef743e2f4096253931a3ba69e5ff8ef1844fe446d3"},
   "credo": {:hex, :credo, "1.7.12", "9e3c20463de4b5f3f23721527fcaf16722ec815e70ff6c60b86412c695d426c1", [:mix], [{:bunt, "~> 0.2.1 or ~> 1.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "8493d45c656c5427d9c729235b99d498bd133421f3e0a683e5c1b561471291e5"},
   "dialyxir": {:hex, :dialyxir, "1.4.6", "7cca478334bf8307e968664343cbdb432ee95b4b68a9cba95bdabb0ad5bdfd9a", [:mix], [{:erlex, ">= 0.2.7", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "8cf5615c5cd4c2da6c501faae642839c8405b49f8aa057ad4ae401cb808ef64d"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.44", "f20830dd6b5c77afe2b063777ddbbff09f9759396500cdbe7523efd58d7a339c", [:mix], [], "hexpm", "4778ac752b4701a5599215f7030989c989ffdc4f6df457c5f36938cc2d2a2750"},
   "erlex": {:hex, :erlex, "0.2.7", "810e8725f96ab74d17aac676e748627a07bc87eb950d2b83acd29dc047a30595", [:mix], [], "hexpm", "3ed95f79d1a844c3f6bf0cea61e0d5612a42ce56da9c03f01df538685365efb0"},
-  "ethereumex": {:hex, :ethereumex, "0.12.1", "20b6b14dd92ef6f09246c643c2385e5c18fda35595b8b8acd05d28cdffff4247", [:make, :mix], [{:finch, "~> 0.16", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:websockex, "~> 0.4.3", [hex: :websockex, repo: "hexpm", optional: false]}], "hexpm", "6a7a5610f80f53384499b4f59549b84e9b9d0d15c844889ca0fedc385b891b4e"},
+  "ethereumex": {:hex, :ethereumex, "0.12.2", "720b7b7df808b9b148e798d15b69c85876957effcb5990e41cbfcd9de3d8061e", [:make, :mix], [{:finch, "~> 0.16", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:websockex, "~> 0.4.3", [hex: :websockex, repo: "hexpm", optional: false]}], "hexpm", "5132244182a00f7eb8e80a4fff52048cadf82aa38d4656ac39226ab668974b03"},
   "ex_abi": {:hex, :ex_abi, "0.8.3", "e01cbafd81008db9e8bc8ac0a4ae5bf08e86a2d82afdca242550269445b80e04", [:mix], [{:ex_keccak, "~> 0.7.6", [hex: :ex_keccak, repo: "hexpm", optional: true]}], "hexpm", "6349a10331c54a1e09865811f705913fa181bc75b4c9a2d326fd96e21bf60cd4"},
   "ex_doc": {:hex, :ex_doc, "0.38.4", "ab48dff7a8af84226bf23baddcdda329f467255d924380a0cf0cee97bb9a9ede", [:mix], [{:earmark_parser, "~> 1.4.44", [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", "f7b62346408a83911c2580154e35613eb314e0278aeea72ed7fedef9c1f165b2"},
   "ex_keccak": {:hex, :ex_keccak, "0.7.8", "be1cf194d3158f0a305eaed0334e478d0d0f2c827e7c1f8f0e1e2a667da5a8ac", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.8", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "52de5b42b718df2534fb9a55780d8a05bbaea539f867c3e7c0a8e7e1d5f149d9"},