figma.teamLibrary returns stale library variable data after library publish/update

When a Team Library variable collection is updated and republished, the Plugin API still returns stale variable descriptors in files where that library is enabled/imported.

Specifically:

• figma.teamLibrary.getAvailableLibraryVariableCollectionsAsync() returns the expected collection
• figma.teamLibrary.getVariablesInLibraryCollectionAsync(collection.key) returns outdated variable names/keys
• the Figma Variables UI in the same file shows the new/current variables correctly

This makes Plugin API data inconsistent with the actual library state visible in Figma UI.