Have Terraform installed in Azure integration test workflow

[MarcAstr0]

Description

See #1562

Changes

Checks

• Project Builds
• Project passes tests and checks
• Updated documentation accordingly

[what-the-diff]

PR Summary

• Introduced Terraform installation step in Azure-deployment workflow
  The team added a task in the re_test-integration-azure.yml workflow file that ensures the latest version of Terraform, a highly useful tool for managing and provisioning software resources, is available during the Azure deployment process.

• Removed Terraform setup from workflow preparation
  The task for installing Terraform has been removed from the re_test-integration-prepare.yml file, suggesting that this setup part isn't needed anymore in this workflow. This might bring simplicity and efficiency as the relevant preparation is directly done in the main Azure deployment workflow.