Update Terraform Feature (#124)

* Update devcontainer-feature.json

* Update src/terraform/devcontainer-feature.json
Co-authored-by: Samruddhi Khandale <skhandale@microsoft.com>

* Update version
Co-authored-by: Samruddhi Khandale <skhandale@microsoft.com>

src/terraform/devcontainer-feature.json

 {
     "id": "terraform",
-    "version": "1.0.3",
+    "version": "1.0.4",
     "name": "Terraform, tflint, and TFGrunt",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/terraform",
     "description": "Installs the Terraform CLI and optionally TFLint and Terragrunt. Auto-detects latest version and installs needed dependencies.",
@@ -43,7 +43,9 @@
             "settings": {
                 "terraform.languageServer": {
                     "enabled": true,
-                    "args": []
+                    "args": [
+                        "serve"
+                    ]
                 },
                 "azureTerraform.terminal": "integrated"
             }