Bump apps/e-petitions from `c9ef993` to `47c8df4`
Bump apps/e-petitions from `c9ef993` to `47c8df4`

Bumps [apps/e-petitions](https://github.com/alphagov/e-petitions) from `c9ef993` to `47c8df4`.
- [Release notes](https://github.com/alphagov/e-petitions/releases)
- [Commits](https://github.com/alphagov/e-petitions/compare/c9ef993ef1907e1fb7a311b40f34bde608f2c814...47c8df45b4fa216f0da815392f1e20bd36651aa3)

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