Universal: Unpin docker-in-docker Feature version (devcontainers#775)

Author: samruddhikhandale

src/universal/.devcontainer/devcontainer.json

@@ -61,8 +61,7 @@
         "ghcr.io/devcontainers/features/github-cli:1": {
             "version": "latest"
         },
-		// Temporarily pinning until we investigate issue with docker start
-        "ghcr.io/devcontainers/features/docker-in-docker:2.3.1": {
+        "ghcr.io/devcontainers/features/docker-in-docker:2": {
             "version": "latest"
         },
         "ghcr.io/devcontainers/features/kubectl-helm-minikube:1": {