Bump ghcr.io/devcontainers/features/docker-in-docker from 3.1.0 to 4.1.1

Bumps ghcr.io/devcontainers/features/docker-in-docker from 3.1.0 to 4.1.1.

---
updated-dependencies:
- dependency-name: ghcr.io/devcontainers/features/docker-in-docker
  dependency-version: 4.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.devcontainer/aspire/devcontainer.json

@@ -3,7 +3,7 @@
   // Base .NET 9 image. Alternatively a Dockerfile/compose could be used.
   "image": "mcr.microsoft.com/devcontainers/dotnet:9.0-bookworm",
   "features": {
-    "ghcr.io/devcontainers/features/docker-in-docker:3": {},
+    "ghcr.io/devcontainers/features/docker-in-docker:4": {},
     "ghcr.io/devcontainers/features/powershell:2": {}
   },