test: Fix the tests running in CI.

Author: skyzyx

.github/workflows/test.yml

@@ -111,7 +111,7 @@ jobs:
           cache: true
 
       - name: Install Terraform
-        uses: hashicorp/setup-terraform@v2
+        uses: hashicorp/setup-terraform@633666f66e0061ca3b725c73b2ec20cd13a8fdd1 # v2.0.3
         with:
           terraform_version: ${{ matrix.terraform_version }}
           terraform_wrapper: false