Bump faraday from 0.15.3 to 0.15.4
Bump faraday from 0.15.3 to 0.15.4

Bumps [faraday](https://github.com/lostisland/faraday) from 0.15.3 to 0.15.4.
- [Release notes](https://github.com/lostisland/faraday/releases)
- [Changelog](https://github.com/lostisland/faraday/blob/master/CHANGELOG.md)
- [Commits](https://github.com/lostisland/faraday/compare/v0.15.3...v0.15.4)

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