@devcontainer/cli publish templates to GitLab container registry

Related to this [issue](https://github.com/devcontainers/cli/issues/675).

I don't see any update, and that issue was closed, so I created a new one.

## TL;DR
It seems that we can publish devcontainer template to GitLab container registry now.

## What happened

I tried to publish devcontainer template to self hosted GitLab container registry (v17.3.7-ee), by following the [example](https://containers.dev/guide/gitlab-ci).

It failed with 401(Could not fetch published tags) as expected, but it worked locally on my machine with the same user and access token.

So I was thinking maybe GitLab container registry start to support OADS now, tried another `.gitlab-ci.yml` and it worked.

But I didn't see any updates from GitLab saying they start to support OADS in this [issue](https://gitlab.com/gitlab-org/gitlab/-/issues/385277).

Anyone know why the original `.gitlab-ci.yml` failed, but the new one worked?

I was thinking building a @devcontainer/cli image with more detailed logs, and use it in the original `.gitlab-ci.yml` to help with the root cause analysis.

## My `.gitlab-ci.yml`

Here's my `.gitlab-ci.yml`:
```=yml
image: alpine:3.20

before_script:
- apk add --update nodejs npm curl
- npm install -g @devcontainers/cli
- VERSION="1.2.0"
- curl -LO "https://github.com/oras-project/oras/releases/download/v${VERSION}/oras_${VERSION}_linux_amd64.tar.gz"
- mkdir -p oras-install/
- tar -zxf oras_${VERSION}_*.tar.gz -C oras-install/
- mv oras-install/oras /usr/local/bin/
- rm -rf oras_${VERSION}_*.tar.gz oras-install/

build:
stage: build
script:
- echo "$PERSONAL_ACCESS_TOKEN" | oras login registry.gitlab.com -u "$PERSONAL_USER" --password-stdin
- devcontainer templates publish --log-level trace -r registry.gitlab.com -n group/project ./src
```

Here's my original and failed `.gitlab-ci.yml`:
```=yml
image: docker:latest

variables:
DOCKER_TLS_CERTDIR: "/certs"

services:
- docker:dind

before_script:
- apk add --update nodejs npm python3 make g++ ca-certificates
- npm install -g @devcontainers/cli

build:
stage: build
script:
- echo "$PERSONAL_ACCESS_TOKEN" | docker login -u "$PERSONAL_USER" registry.gitlab.com --password-stdin
- devcontainer templates publish --log-level trace -r registry.gitlab.com -n group/project ./src
```