Support for pyiceberg using s3 signer

[guitcastro]

Issue description

It's not possible to use Nessie rest s3 signer with pyiceberg. This is on their side, and I working to fix it. I am opening an issue here just to keep track.

[hienduyph]

Currently, there's a workaround to make pyiceberg works:

• apply the patch on main branch Access delegation apache/iceberg-python#1033
• pyiceberg _s3 reads remote sign by checking the key s3.signer=S3V4RestSigner (https://github.com/apache/iceberg-python/blob/main/pyiceberg/io/fsspec.py#L132-L146). So somehow nessie returns this key or pyiceberg performs another check likes

    if properties.get("s3.remote-signing-enabled", None):
        properties["s3.signer"] = "S3V4RestSigner"
    if signer := properties.get("s3.signer"):

And make sure you're using FsSpec

catalog = load_catalog(
    "nessie",
    **{
        ...
        "py-io-impl": "pyiceberg.io.fsspec.FsspecFileIO",
    },
)