Is IPFS+estargz working?

### Description

Be sure to serve locally `nerdctl ipfs registry serve --listen-registry localhost:5555` and to have a completely clean, IPFS ready environment.

Then manually start a local registry:
`nerdctl ipfs registry serve --listen-registry localhost:5555`

And:

```
export CONTAINERD_SNAPSHOTTER=stargz

# Clean before
nerdctl rmi --namespace=nerdctl-test -f localhost:5555/ipfs/bafkreicztjlfrhs5aes457yyb5nnbjgsjw6wgin4krjed4f2uxqbxa5ypu
nerdctl rmi --namespace=nerdctl-test -f bafkreicztjlfrhs5aes457yyb5nnbjgsjw6wgin4krjed4f2uxqbxa5ypu

# Pull
nerdctl pull --namespace=nerdctl-test ghcr.io/stargz-containers/alpine:3.13-org
# Push
nerdctl push --namespace=nerdctl-test ipfs://ghcr.io/stargz-containers/alpine:3.13-org --estargz

############################ Comment or uncomment the following line
#nerdctl pull --namespace=nerdctl-test localhost:5555/ipfs/bafkreicztjlfrhs5aes457yyb5nnbjgsjw6wgin4krjed4f2uxqbxa5ypu
############################ ^

# Pull from ipfs
nerdctl pull --namespace=nerdctl-test ipfs://bafkreicztjlfrhs5aes457yyb5nnbjgsjw6wgin4krjed4f2uxqbxa5ypu
# Run
nerdctl run --namespace=nerdctl-test --rm ipfs://bafkreicztjlfrhs5aes457yyb5nnbjgsjw6wgin4krjed4f2uxqbxa5ypu ls /.stargz-snapshotter

```

It seems like pulling solely from `ipfs://CID`, or from the locally served registry yields different results - one of the image seems to be on stargz, but not the other.

I do not see any difference between the two images, nor the containers, but there seems to be something amiss here.

Note that the same problem appears to happen when pulling with --ipfs-address

Or am I missing something here?

### Steps to reproduce the issue

na

### Describe the results you received and expected

na

### What version of nerdctl are you using?

main

### Host information

```
ipfs version 0.29.0

Linux lima-v2 6.8.0-45-generic #45-Ubuntu SMP PREEMPT_DYNAMIC Fri Aug 30 12:26:41 UTC 2024 aarch64 aarch64 aarch64 GNU/Linux

Ubuntu 24.04 LTS \n \l

nerdctl version 2.0.0-rc.2-45-g340ba031.m

containerd github.com/containerd/containerd/v2 v2.0.0-rc.3-211-g7b948faa0.m 7b948faa084506e72967d88b5d35423211f13b07.m
```