Bump apps/test_track from `75476ce` to `ba507f5`
Bump apps/test_track from `75476ce` to `ba507f5`

Bumps [apps/test_track](https://github.com/Betterment/test_track) from `75476ce` to `ba507f5`.
- [Release notes](https://github.com/Betterment/test_track/releases)
- [Commits](https://github.com/Betterment/test_track/compare/75476ce6a75eab61dea58d348a26c76d638b3cdb...ba507f58149aa4999b4d85d68fccada0dffb0799)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
eliotsykes/real-world-rails