chore: update lance dependency to v2.0.0-rc.1 (#2936)

## Summary
- bump Lance dependencies to v2.0.0-rc.1 (git tag)
- align Arrow/DataFusion/PyO3 versions for the new Lance release
- update Python bindings for PyO3 0.26 (attach API + Py<PyAny>)

## Verification
- `cargo clippy --workspace --tests --all-features -- -D warnings`
- `cargo fmt --all`

## Reference
- https://github.com/lance-format/lance/releases/tag/v2.0.0-rc.1

---------

Co-authored-by: Jack Ye <yezhaoqin@gmail.com>
Co-authored-by: Will Jones <willjones127@gmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: BubbleCal <bubble_cal@outlook.com>

python/python/tests/test_remote_db.py

@@ -601,7 +601,6 @@ def test_head():
 def test_query_sync_minimal():
     def handler(body):
         assert body == {
-            "distance_type": "l2",
             "k": 10,
             "prefilter": True,
             "refine_factor": None,
@@ -685,7 +684,6 @@ def test_query_sync_maximal():
 def test_query_sync_nprobes():
     def handler(body):
         assert body == {
-            "distance_type": "l2",
             "k": 10,
             "prefilter": True,
             "fast_search": True,
@@ -715,7 +713,6 @@ def test_query_sync_nprobes():
 def test_query_sync_no_max_nprobes():
     def handler(body):
         assert body == {
-            "distance_type": "l2",
             "k": 10,
             "prefilter": True,
             "fast_search": True,
@@ -838,7 +835,6 @@ def test_query_sync_hybrid():
         else:
             # Vector query
             assert body == {
-                "distance_type": "l2",
                 "k": 42,
                 "prefilter": True,
                 "refine_factor": None,