Bug: When renaming Prim in the Prim Hierarchy it moves it to the end of the siblings

[BigRoy]

Upon renaming a Prim in the Hierarchy model it moves it to the end of the hierarchy instead of just renaming, keeping its index.

This is likely due to usd_qtpy.lib.usd.rename_prim going through usd_qtpy.lib.usd.move_prim_spec logic which ends up using Sdf.NamespaceEdit.ReparentAndRename but should actually - when staying under the same parent, use Sdf.NamespaceEdit.Rename which likely makes the prim keep its index among its siblings.