Bump ecto_sql from 3.0.0 to 3.0.4 (#324)
Bump ecto_sql from 3.0.0 to 3.0.4 (#324)

Bumps [ecto_sql](https://github.com/elixir-ecto/ecto_sql) from 3.0.0 to 3.0.4.
- [Release notes](https://github.com/elixir-ecto/ecto_sql/releases)
- [Changelog](https://github.com/elixir-ecto/ecto_sql/blob/master/CHANGELOG.md)
- [Commits](https://github.com/elixir-ecto/ecto_sql/compare/v3.0.0...v3.0.4)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
thoughtbot/ex_machina