Unactionable error while publishing to private gitlab registry

Hi there. I couple of weeks ago I set up a repository of private devcontainer features on our gitlab instance and it did work pretty well.

Something has changed since then and I suspect it's probably on the side of the gitlab registry, but the error I'm getting does not allow me to investigate further, although I'm using the `trace` log level.

```shell
at 12:26:21 ❯ devcontainer features publish features/src --registry registry.taktsoft.com --namespace taktsoft/devcontainers/features --log-level trace

[2 ms] @devcontainers/cli 0.80.3. Node.js v22.18.0. linux 6.8.0-87-generic x64.
[2 ms] Packaging feature collection...
[3 ms] Processing feature: collection-base...
[17 ms] Processing feature: hello...
[21 ms] Processing feature: local-bin...
[25 ms] Processing feature: secure-cli...
[30 ms] Packaged 4 features!
[30 ms] Processing feature: collection-base...
[30 ms] > input: registry.taktsoft.com/taktsoft/devcontainers/features/collection-base
[30 ms] >
[30 ms] > resource: registry.taktsoft.com/taktsoft/devcontainers/features/collection-base
[30 ms] > id: collection-base
[30 ms] > owner: taktsoft
[30 ms] > namespace: taktsoft/devcontainers/features
[30 ms] > registry: registry.taktsoft.com
[30 ms] > path: taktsoft/devcontainers/features/collection-base
[30 ms] >
[30 ms] > version: latest
[31 ms] > tag?: latest
[31 ms] > digest?: undefined
[31 ms] Feature Annotations: {"dev.containers.metadata":"{\"name\":\"Taktsoft base collection\",\"id\":\"collection-base\",\"version\":\"0.0.1\",\"description\":\"A wrapper feature forcing the install of multiple other recommended features\",\"installsAfter\":[\"ghcr.io/devcontainers/features/common-utils\"],\"dependsOn\":{\"ghcr.io/devcontainers/features/common-utils:2\":{\"installZsh\":\"true\",\"username\":\"vscode\",\"userUid\":\"1000\",\"userGid\":\"1000\",\"upgradePackages\":\"true\"},\"ghcr.io/devcontainers/features/git:1\":{\"version\":\"latest\",\"ppa\":\"false\"},\"ghcr.io/stuartleeks/dev-container-features/shell-history:0\":{},\"ghcr.io/skriptfabrik/devcontainer-features/gitlab-cli:1\":{},\"registry.taktsoft.com/taktsoft/devcontainers/features/secure-cli:0.0.1\":{}}}"}
[31 ms] Fetching published versions...
[128 ms] [httpOci] Attempting to authenticate via 'Bearer' auth.
[129 ms] [httpOci] Found auths entry in '/home/max/.docker/config.json' for registry 'registry.taktsoft.com'
[129 ms] [httpOci] Attempting to fetch bearer token from: https://git.taktsoft.com/jwt/auth?service=container_registry&scope=repository:taktsoft/devcontainers/features/collection-base:pull
[428 ms] [httpOci] 200 on reattempt after auth: https://registry.taktsoft.com/v2/taktsoft/devcontainers/features/collection-base/tags/list
[428 ms] (!) ERR: Failed to publish 'registry.taktsoft.com/taktsoft/devcontainers/features/collection-base'
```

It tries to get the tag list, but then only fails with

```
[428 ms] (!) ERR: Failed to publish 'registry.taktsoft.com/taktsoft/devcontainers/features/collection-base'
```

Any idea on how I can get even more details about the error than just the `trace` log level?

Any help is much appreciated! ❤️

p.s.

We had to change the s3 backend for gitlab and decided to start with a completely empty registry instead of migrating the old bucket. No I idea if this could cause problems, but for other artifacts the registry works just fine.