Downsampling MeshNeurons and simplifying meshes fails with Blender 4.3

[floesche]

Description

When using blender 4.3 as a back end, the downsample_neuron() function fails with AttributeError: 'Scene' object has no attribute 'vertices'.

To Reproduce

import navis
n = navis.example_neurons(1, kind="mesh")
n_sm = simplify_mesh_blender(n, F=0.2, inplace=False)

Expected behavior
n_sm should contain the simplified mesh

Screenshots

Your system

• NAVis version: 1.7 (also briefly tested with 1.9)
• Python version: 3.12.5
• Operating System: Linux