Fix devcontainer.json

A missing comma was causing container build to fail, it was falling back on recovery container.

.devcontainer/devcontainer.json

@@ -6,7 +6,7 @@
 	"image": "mcr.microsoft.com/devcontainers/python:1-3.11-bullseye",
 	"features": {
 		"ghcr.io/devcontainers/features/python:1": {}
-	}
+	},
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
 	// "features": {},