chore: update OpenDAL and object_store

[Xuanwo]

This upgrades the OpenDAL integration stack to the latest compatible releases: opendal and object_store_opendal 0.56, alongside object_store 0.13.2.

The main compatibility work is adapting Lance's object-store wrappers and test stores to the object_store 0.13 trait shape, where convenience operations moved behind ObjectStoreExt and implementations now provide delete_stream / copy_opts directly. The PR also replaces deprecated Path::child calls with Path::join so the upgrade does not leave new deprecation noise behind.

[github-actions]

ACTION NEEDED
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[codecov]

Codecov Report

❌ Patch coverage is 78.38900% with 110 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
rust/lance-io/src/object_store/dynamic_opendal.rs	0.00%	17 Missing ⚠️
rust/lance-io/src/object_store/throttle.rs	37.03%	17 Missing ⚠️
rust/lance/src/dataset/blob.rs	52.00%	12 Missing ⚠️
rust/lance/src/index/vector/ivf.rs	58.33%	10 Missing ⚠️
...lance-io/src/object_store/providers/huggingface.rs	47.05%	2 Missing and 7 partials ⚠️
rust/lance-index/src/vector/v3/shuffler.rs	20.00%	8 Missing ⚠️
rust/lance-core/src/utils/testing.rs	76.00%	6 Missing ⚠️
rust/lance/src/dataset/fragment.rs	61.53%	5 Missing ⚠️
rust/lance/src/index/vector/ivf/io.rs	0.00%	5 Missing ⚠️
rust/lance-namespace-impls/src/dir.rs	75.00%	4 Missing ⚠️
... and 10 more

📢 Thoughts on this report? Let us know!

[jackye1995]

I can rebase this

[claude]

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