Bump apps/e-petitions from `b7d2982` to `989b3d3`
Bump apps/e-petitions from `b7d2982` to `989b3d3`

Bumps [apps/e-petitions](https://github.com/alphagov/e-petitions) from `b7d2982` to `989b3d3`.
- [Release notes](https://github.com/alphagov/e-petitions/releases)
- [Commits](https://github.com/alphagov/e-petitions/compare/b7d2982743638d2f26f882c5ce6c81355518f742...989b3d36dcf523d86bc5194e621055ac4f66598f)

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