devcontainer: mount /dev (#32500)

.devcontainer/devcontainer.json

@@ -14,6 +14,7 @@
     "force_color_prompt": "1"
   },
   "runArgs": [
+    "--volume=/dev:/dev",
     "--volume=/tmp/.X11-unix:/tmp/.X11-unix",
     "--volume=${localWorkspaceFolder}/.devcontainer/.host/.Xauthority:/home/batman/.Xauthority",
     "--volume=${localEnv:HOME}/.comma:/home/batman/.comma",
@@ -49,4 +50,4 @@
   "mounts": [
     "type=volume,source=scons_cache,target=/tmp/scons_cache"
   ]
-}
+}