Bump ex_abi from 0.6.3 to 0.6.4

Bumps [ex_abi](https://github.com/poanetwork/ex_abi) from 0.6.3 to 0.6.4.
- [Release notes](https://github.com/poanetwork/ex_abi/releases)
- [Changelog](https://github.com/poanetwork/ex_abi/blob/master/CHANGELOG.md)
- [Commits](https://github.com/poanetwork/ex_abi/compare/0.6.3...0.6.4)

---
updated-dependencies:
- dependency-name: ex_abi
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

mix.lock

@@ -41,7 +41,7 @@
   "ecto_sql": {:hex, :ecto_sql, "3.10.2", "6b98b46534b5c2f8b8b5f03f126e75e2a73c64f3c071149d32987a5378b0fdbd", [:mix], [{:db_connection, "~> 2.5 or ~> 2.4.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.10.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.6.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.16.0 or ~> 0.17.0 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "68c018debca57cb9235e3889affdaec7a10616a4e3a80c99fa1d01fdafaa9007"},
   "elixir_make": {:hex, :elixir_make, "0.7.7", "7128c60c2476019ed978210c245badf08b03dbec4f24d05790ef791da11aa17c", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}], "hexpm", "5bc19fff950fad52bbe5f211b12db9ec82c6b34a9647da0c2224b8b8464c7e6c"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
-  "ex_abi": {:hex, :ex_abi, "0.6.3", "e16f232346badc9f03a459cea7113ad4cff28dd2faf36f5635eaa01d5e903d7c", [:mix], [{:ex_keccak, "~> 0.7.3", [hex: :ex_keccak, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "bd1bcbe1d4fac14b90aa132fa54690b36d26e11e3777b755623bf32e66caef85"},
+  "ex_abi": {:hex, :ex_abi, "0.6.4", "f722a38298f176dab511cf94627b2815282669255bc2eb834674f23ca71f5cfb", [:mix], [{:ex_keccak, "~> 0.7.3", [hex: :ex_keccak, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "07eaf39b70dd3beac1286c10368d27091a9a64844830eb26a38f1c8d8b19dfbb"},
   "ex_cldr": {:hex, :ex_cldr, "2.37.5", "9da6d97334035b961d2c2de167dc6af8cd3e09859301a5b8f49f90bd8b034593", [:mix], [{:cldr_utils, "~> 2.21", [hex: :cldr_utils, repo: "hexpm", optional: false]}, {:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:gettext, "~> 0.19", [hex: :gettext, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: true]}], "hexpm", "74ad5ddff791112ce4156382e171a5f5d3766af9d5c4675e0571f081fe136479"},
   "ex_cldr_currencies": {:hex, :ex_cldr_currencies, "2.15.1", "e92ba17c41e7405b7784e0e65f406b5f17cfe313e0e70de9befd653e12854822", [:mix], [{:ex_cldr, "~> 2.34", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "31df8bd37688340f8819bdd770eb17d659652078d34db632b85d4a32864d6a25"},
   "ex_cldr_lists": {:hex, :ex_cldr_lists, "2.10.1", "67795eb28f8534a36cbdfeeaea6d3ee587eeac7eafff71968dd046c215d4ec42", [: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", "da826148d95c7a1889fd847ae5704c141747bad43a5a44431ae97bced57b0f93"},