fix: update DatasetConsistencyWrapper to accept same-version updates (#3055)

## Summary

`DatasetConsistencyWrapper::update()` only stored datasets with a
strictly newer
version. This caused `migrate_manifest_paths_v2` to silently drop its
update since
the migration renames files without bumping the dataset version. The
subsequent
`uses_v2_manifest_paths()` call would then return the stale cached
dataset.

Changed the version check from `>` to `>=` so same-version updates are
accepted.

## Test plan

- [x] Existing `test_create_table_v2_manifest_paths_async` Python test
should pass
- [x] Existing `should be able to migrate tables to the V2 manifest
paths` NodeJS test should pass
- [x] All dataset wrapper unit tests pass locally


🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/nodejs.yml

@@ -8,6 +8,7 @@ on:
     paths:
       - Cargo.toml
       - nodejs/**
+      - rust/**
       - docs/src/js/**
       - .github/workflows/nodejs.yml
       - docker-compose.yml

.github/workflows/python.yml

@@ -8,6 +8,7 @@ on:
     paths:
       - Cargo.toml
       - python/**
+      - rust/**
       - .github/workflows/python.yml
 
 concurrency:

rust/lancedb/src/table/dataset.rs

@@ -109,7 +109,9 @@ impl DatasetConsistencyWrapper {
 
     /// Store a new dataset version after a write operation.
     ///
-    /// Only stores the dataset if its version is newer than the current one.
+    /// Only stores the dataset if its version is at least as new as the current one.
+    /// Same-version updates are accepted for operations like manifest path migration
+    /// that modify the dataset without creating a new version.
     /// If the wrapper has since transitioned to time-travel mode (e.g. via a
     /// concurrent [`as_time_travel`](Self::as_time_travel) call), the update
     /// is silently ignored — the write already committed to storage.
@@ -121,7 +123,7 @@ impl DatasetConsistencyWrapper {
             // cached pointer.
             return;
         }
-        if dataset.manifest().version > state.dataset.manifest().version {
+        if dataset.manifest().version >= state.dataset.manifest().version {
             state.dataset = Arc::new(dataset);
         }
         drop(state);