Bump pry-rails from 0.3.8 to 0.3.9
Bump pry-rails from 0.3.8 to 0.3.9

Bumps [pry-rails](https://github.com/rweng/pry-rails) from 0.3.8 to 0.3.9.
- [Release notes](https://github.com/rweng/pry-rails/releases)
- [Commits](https://github.com/rweng/pry-rails/compare/v0.3.8...v0.3.9)

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