Set zarr_format for zarr.consolidate_metadata (#9848)

Avoids a few useless gets with Zarr v3 stores.

Author: dcherian

xarray/backends/zarr.py

@@ -972,6 +972,7 @@ def store(
             if _zarr_v3():
                 # https://github.com/zarr-developers/zarr-python/pull/2113#issuecomment-2386718323
                 kwargs["path"] = self.zarr_group.name.lstrip("/")
+                kwargs["zarr_format"] = self.zarr_group.metadata.zarr_format
             zarr.consolidate_metadata(self.zarr_group.store, **kwargs)
 
     def sync(self):