Bump ghcr.io/devcontainers/features/docker-in-docker

Bumps ghcr.io/devcontainers/features/docker-in-docker from 2.17.0 to 4.0.0.

---
updated-dependencies:
- dependency-name: ghcr.io/devcontainers/features/docker-in-docker
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.devcontainer/devcontainer.json

@@ -7,7 +7,7 @@
 		"ghcr.io/devcontainers/features/terraform:1": {
 			"version": "latest"
 		},
-		"ghcr.io/devcontainers/features/docker-in-docker:2": {}
+		"ghcr.io/devcontainers/features/docker-in-docker:4": {}
 	},
 	"customizations": {
 		"vscode": {