chore(deps): update hashicorp/setup-terraform action to v4 (#27)

Author: renovate-bot

.github/workflows/terraform.yml

@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v5
-      - uses: hashicorp/setup-terraform@v3
+      - uses: hashicorp/setup-terraform@v4
       - name: Terraform Lint
         run: |
           terraform fmt -check -diff -recursive
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: hashicorp/setup-terraform@v3
+      - uses: hashicorp/setup-terraform@v4
 
       - name: Terraform Validate
         run: |