fix(deps): set proper version for devcontainers docker feature

Signed-off-by: Emilien Escalle <emilien.escalle@escemi.com>

Author: neilime

.devcontainer/devcontainer.json

@@ -2,7 +2,7 @@
 	"name": "Alpine",
 	"image": "mcr.microsoft.com/devcontainers/base:alpine-3.21",
 	"features": {
-		"ghcr.io/devcontainers/features/docker-in-docker:": {},
+		"ghcr.io/devcontainers/features/docker-in-docker:4": {},
 		"ghcr.io/devcontainers/features/github-cli:1": {},
 		"ghcr.io/devcontainers-extra/features/act:1": {}
 	},