Bump actionpack from 3.1.5 to 3.1.12
Bump actionpack from 3.1.5 to 3.1.12

Bumps [actionpack](https://github.com/rails/rails) from 3.1.5 to 3.1.12.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v6.1.3.2/actionpack/CHANGELOG.md)
- [Commits](https://github.com/rails/rails/compare/v3.1.5...v3.1.12)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
sujrd/suj-kana-validator,sujrd/suj-kana-validator,sujrd/suj-kana-validator