Bump capistrano-rails from 1.5.0 to 1.6.1
Bump capistrano-rails from 1.5.0 to 1.6.1

Bumps [capistrano-rails](https://github.com/capistrano/rails) from 1.5.0 to 1.6.1.
- [Release notes](https://github.com/capistrano/rails/releases)
- [Commits](https://github.com/capistrano/rails/compare/v1.5.0...v1.6.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
alphagov/local-links-manager,alphagov/local-links-manager,alphagov/local-links-manager