chore: bump pylance to 11.0.0

[FANNG1]

Summary

• raise the pylance floor from >=8.0.0 to >=11.0.0 and relock to 11.0.0
• keep lance-namespace at 0.8.6: pylance 11 requires >=0.8.5,<0.9
• update tests for two behavior changes in Lance 9–11; no daft_lance source changes are needed

Lance changes that affect daft-lance

Lance change	Effect here
lance#8017: zone maps support all data types	test_build_distributed_index_zonemap_invalid_string_column expected ZONEMAP on a string column to fail. It now builds, so the test is renamed to ..._zonemap_string_column and asserts the index is created.
lance#7903: blob APIs keep null selections	LanceDataset.take_blobs returns Optional[BlobFile] and keeps results aligned with the requested row ids, so test_lancedb_write_blob now narrows the Optional. As a side effect, daft_lance.take_blobs no longer fails on null blobs (on pylance 8 it failed with a length mismatch). A regression test for that will come with the #65 fix.

I also checked these breaking changes against daft-lance and they need no changes:

• lance#8206: fragment ids are no longer reused across an overwrite. The sink's Overwrite commits freshly written fragments without deletion files, and insert_overwrite commits an Update.
• lance#8235: new max_source_rows / max_source_bytes compaction options. These are only additions.
• lance#7778: compaction remapper. This only changes a Rust trait.
• lance#7512: FTS v2 is the default index format. It is covered by the distributed and segmented INVERTED/FTS tests.

Lockfile

The committed uv.lock uses a compact style that no uv lock version writes, so relocking would reformat the entire file (about 1.3k lines). I resolved with uv lock --upgrade-package pylance (uv 0.11.2, the version pinned by the pre-commit uv-lock hook) and copied only the changed pylance and daft-lance entries into the existing file. The result is semantically identical to uv's output, and uv lock --check passes.

Validation

• native runner: 372 passed, 5 skipped, 2 xfailed, 2 xpassed
• Ray runner (DAFT_RUNNER=ray, ray 2.55.1): 368 passed. The 4 failures are all take_blobs tests failing with cannot pickle 'builtins.LanceBlobFile' object. They fail the same way on pylance 8.0.0 and are tracked in take_blobs fails on the Ray runner: LanceBlobFile is not picklable #65.
• mypy: same errors as on pylance 8.0.0, none new (the existing strict-mode errors are unchanged)
• ruff format --check and ruff check: pass

https://claude.ai/code/session_017ZCLiXSVbAbtEV7z8smf8D

[FANNG1]

@universalmind303 @rchowell could you help to review this PR? thanks!