Bump hashicorp/setup-terraform from 1.4.0 to 2.0.0

Bumps [hashicorp/setup-terraform](https://github.com/hashicorp/setup-terraform) from 1.4.0 to 2.0.0.
- [Release notes](https://github.com/hashicorp/setup-terraform/releases)
- [Changelog](https://github.com/hashicorp/setup-terraform/blob/main/CHANGELOG.md)
- [Commits](hashicorp/setup-terraform@v1.4.0...v2.0.0)

---
updated-dependencies:
- dependency-name: hashicorp/setup-terraform
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/validate.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
-      - uses: hashicorp/setup-terraform@v1.4.0
+      - uses: hashicorp/setup-terraform@v2.0.0
         with:
           terraform_version: 0.15.5
       - run: terraform init