chore: provide terraform binary to pipeline (#615)

* chore: pull terraform binary explicitly

* chore: use unzip instead of not available bsdtar

* chore: reuse existing terraform from path

* chore: use github action to install terraform in pipeline

* chore: removed explicit terraform version

.github/workflows/ci.yaml

@@ -16,6 +16,8 @@ jobs:
         uses: ./.github/actions/build
         with:
           go-version: ${{ env.GO_VERSION }}
+      - name: Setup Terraform
+        uses: hashicorp/setup-terraform@v2
       - name: Lint
         run: make lint
       - name: Test