Bump activesupport from 7.0.8.4 to 7.2.3.1 in /private/helloworld

Bumps [activesupport](https://github.com/rails/rails) from 7.0.8.4 to 7.2.3.1.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v8.1.3/activesupport/CHANGELOG.md)
- [Commits](https://github.com/rails/rails/compare/v7.0.8.4...v7.2.3.1)

---
updated-dependencies:
- dependency-name: activesupport
  dependency-version: 7.2.3.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>