update morecantile and pydantic requirements

[vincentsarago]

This PR does:

• update morecantile dependency to >=5.0,<6.0
• update models for pydantic 2.0
• update docs

5.1 or 6.0

There is no real API change between 5.0 and this PR, but the pydantic update is quite big. I wonder if we should do a major update?

[vincentsarago]

After talking on slack: Let's do 6.0 🥳

[sikmir]

I wonder if rio-tiler really is not compatible with morecantile 6.0?

[vincentsarago]

@sikmir i'm not sure to understand your question

[sikmir]

@sikmir i'm not sure to understand your question

I'm about morecantile>=5.0,<6.0, does it really mean that rio-tiler doesn't expected to work with morecantile 6.0? or just maybe work, but untested?

[vincentsarago]

The next version of rio-tiler (release on Monday) will work with morecantile 6.0

https://github.com/cogeotiff/rio-tiler/blob/0ee8dfb06d703c6269de3ab26a71e633231e1e28/CHANGES.md#L80 https://github.com/cogeotiff/rio-tiler/blob/0ee8dfb06d703c6269de3ab26a71e633231e1e28/pyproject.toml#L29 https://github.com/cogeotiff/rio-tiler/pull/748