Bump apps/open-source-billing from `c8f8061` to `3088446`
Bump apps/open-source-billing from `c8f8061` to `3088446`

Bumps [apps/open-source-billing](https://github.com/vteams/open-source-billing) from `c8f8061` to `3088446`.
- [Release notes](https://github.com/vteams/open-source-billing/releases)
- [Commits](https://github.com/vteams/open-source-billing/compare/c8f806120082fd094f47840be7eb1620eb181a9f...308844647b3e13bd5bb5f725b9ab2639c40644f1)

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