ci(github): streamline Terraform CI steps by consolidating working directory settings (#215)

Author: shiron-dev

.github/workflows/ci.yml

@@ -89,26 +89,23 @@ jobs:
   terraform-validate:
     runs-on: ubuntu-latest
     timeout-minutes: 10
+    defaults:
+      run:
+        working-directory: terraform
     steps:
       - uses: actions/checkout@v4
       - name: Setup Terraform
         uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd # v3.1.2
-        with:
-          terraform_version: "1.13.5"
       - name: Install tflint
         run: |
           curl -s https://raw.githubusercontent.com/terraform-linters/tflint/master/install_linux.sh | bash
       - name: Terraform Format Check
-        working-directory: terraform
         run: terraform fmt -check -recursive
       - name: Terraform Init
-        working-directory: terraform
         run: terraform init -backend=false
       - name: Terraform Validate
-        working-directory: terraform
         run: terraform validate
       - name: Run tflint
-        working-directory: terraform
         run: tflint --init && tflint
 
   sops-secrets-check: