Terrraform 0.12.24 update and some fixes

Terraform 🆙

• Updates the terraform version to 0.12.24

New 🆕

• Compatibility with latest version of the Scaleway provider (they changed their environment variable names)
• Ability to use Scaleway Object Storage as a backend storage for the S3 backend type of terraform

Fix 🐛

• lint and fmt tasks were not working in the environment's directory. It's now fixed!