Fix #106759: Error on running blender_icons_geom.py with curve

288e7d0af0 added support for legacy curves, these dont have attributes
though, but code was checking for an active color atttribute.

Now, only do this check (and skip that object) if it has no attributes (or
doesnt have vertex or active color atttribute).

Pull Request: https://projects.blender.org/blender/blender/pulls/108647

release/datafiles/blender_icons_geom.py

@@ -350,7 +350,7 @@ def main():
         if name.rpartition(".")[2].isdigit():
             continue
 
-        if not ob_eval.data.attributes.active_color:
+        if (not hasattr(ob_eval.data, 'attributes')) or not ob_eval.data.attributes.active_color:
             print("Skipping:", name, "(no vertex colors)")
             continue