Update hashicorp/setup-terraform action to v3

.gitea/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Setup Terraform
-        uses: hashicorp/setup-terraform@v2
+        uses: hashicorp/setup-terraform@v3
       - uses: taiki-e/install-action@just
       - name: Init
         run: just terraform init -backend=false