chore(release): 8.1.0 [skip ci]

# [8.1.0](https://gitlab.com/to-be-continuous/terraform/compare/8.0.3...8.1.0) (2025-11-11)

### Features

* add OpenTofu support ([9f7f40c6](https://gitlab.com/to-be-continuous/terraform/commit/9f7f40c6318cf2637b29091f29f4f3d8dac9e21a))
* add var-file option on terraform init ([43d91425](https://gitlab.com/to-be-continuous/terraform/commit/43d91425951c4867fdf154e84a935767e815e223))