chore(deps): update terraform hashicorp/terraform to v1.5.6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
hashicorp/terraform	required_version	patch	1.5.5 -> 1.5.6

---

Release Notes

hashicorp/terraform (hashicorp/terraform)

v1.5.6

Compare Source

1.5.6 (August 23, 2023)

BUG FIXES:

• terraform_remote_state: Fixed a potential unsafe read panic when reading from multiple terraform_remote_state data sources (#​33333)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[github-actions]

PR Environments:

• azure version https://terraform-azure-pr-264.training.acend.ch
• aws version https://terraform-aws-pr-264.training.acend.ch
• gcp version https://terraform-gcp-pr-264.training.acend.ch