Removing forced gid 999 for docker (#515)

* Removing forced gid 999 for docker

* version bump

---------
Co-authored-by: Ryan Campbell <rycampbe@microsoft.com>
Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

src/docker-outside-of-docker/devcontainer-feature.json

 {
     "id": "docker-outside-of-docker",
-    "version": "1.2.0",
+    "version": "1.2.1",
     "name": "Docker (docker-outside-of-docker)",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/docker-outside-of-docker",
     "description": "Re-use the host docker socket, adding the Docker CLI to a container. Feature invokes a script to enable using a forwarded Docker socket within a container to run Docker commands.",

src/docker-outside-of-docker/install.sh

@@ -261,11 +261,13 @@ if ! grep -qE '^docker:' /etc/group; then
     groupadd --system docker
 fi
 
+# Remarking this out to restore functionality in Azure VMs.  ID 999 is a reserved group ID
 # Ensure docker group gid is 999
-if [ "$(getent group docker | cut -d: -f3)" != "999" ]; then
-    echo "(*) Updating docker group gid to 999..."
-    groupmod -g 999 docker
-fi
+# if [ "$(getent group docker | cut -d: -f3)" != "999" ]; then
+#     echo "(*) Updating docker group gid to 999..."
+#     groupmod -g 999 docker
+# fi
+
 
 usermod -aG docker "${USERNAME}"