Prevent Faker Address country_code from raising RetryLimitExceeded

[Quentinchampenois]

🎩 What? Why?

Seeds are failing when executing with another locale than default (:en).
It seems that Faker i18n translations are different between english and other languages, see english failing key country_code and french for example.

In this PR, country code is no longer generated using unique of Faker but with the current index when creating Scope.

📌 Related Issues

• Fixes Cannot db:seed when changing default locale (Faker issue) #4667

Testing

Step to reproduce are well explained in the related issue :

1. In a Decidim application (like development_app)
2. Update the Decidim's locale in config/initializers/decidim.rb :

[...]
  config.available_locales = %w(fr)
  # organization from the System area, system admins will be able to overwrite
  config.default_locale = :fr
[...]

3. Then clear the database and execute seeds : bundle exec rake db:setup
4. Seeds should run without failure.

You can also try with an other default locale like :ca, :es, etc...

📋 Checklist

🚨 Please review the guidelines for contributing to this repository.

• ❓ CONSIDER adding a unit test if your PR resolves an issue.
• ✔️ DO check open PR's to avoid duplicates.
• ✔️ DO keep pull requests small so they can be easily reviewed.
• ✔️ DO build locally before pushing.
• ✔️ DO make sure tests pass.
• ✔️ DO make sure any new changes are documented in docs/.
• ✔️ DO add and modify seeds if necessary.
• ✔️ DO add CHANGELOG upgrade notes if required.
• ✔️ DO add to GraphQL API if there are new public fields.
• ✔️ DO add link to MetaDecidim if it's a new feature.
• ❌AVOID breaking the continuous integration build.
• ❌AVOID making significant changes to the overall architecture.

♥️ Thank you!

[andreslucena]

Tried it locally, it works, thanks for the fix! Funnily, with :ca it didn't have any issue because there isn't a Faker country_code and it seems like it's fall backing to the defined on :en 🤷🏽‍♂️
Anyhow, this for sure is an improvement, fixing the seeds for all locales I think.

[andreslucena]

Can you please backport to v0.26-stable 🙏🏽? Thanks