[v4.3] Limit supported rails version to before 7.2

[github-actions[bot]]

Backport

This will backport the following commits from main to v4.3:

• Merge pull request #5832 from ugifractal/rails-version-requirement

Questions ?

Please refer to the Backport tool documentation

[tvdeyen]

fails because https://github.com/solidusio/solidus/pull/5812 has not been backported to v4.3

[tvdeyen]

Installer specs will be fixed by https://github.com/solidusio/solidus_starter_frontend/pull/371

[tvdeyen]

Installer spec will be fixed by backport PR https://github.com/solidusio/solidus_starter_frontend/pull/372