Bump rails from 8.1.1 to 8.1.2 in the rails group

Bump rails from 8.1.1 to 8.1.2 in the rails group

Bumps the rails group with 1 update: [rails](https://github.com/rails/rails).

Updates `rails` from 8.1.1 to 8.1.2
- [Release notes](https://github.com/rails/rails/releases)
- [Commits](https://github.com/rails/rails/compare/v8.1.1...v8.1.2)

---
updated-dependencies:
- dependency-name: rails
  dependency-version: 8.1.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: rails
...

Signed-off-by: dependabot[bot] <support@github.com>