Fix: Sculpt performance test does not run

The runner for the performance tests / benchmarks uses python 3.9, so
the `match` statement is invalid as a concept.

Pull Request: https://projects.blender.org/blender/blender/pulls/137563

tests/performance/tests/sculpt.py

@@ -67,13 +67,14 @@ def prepare_sculpt_scene(context: any, mode: SculptMode, brush_type: BrushType):
     group.interface.new_socket("Geometry", in_out='OUTPUT', socket_type='NodeSocketGeometry')
     group_output_node = group.nodes.new('NodeGroupOutput')
 
-    match mode:
-        case SculptMode.MESH:
-            size = 1500
-        case SculptMode.MULTIRES:
-            size = 150
-        case SculptMode.DYNTOPO:
-            size = 1500
+    if mode == SculptMode.MESH:
+        size = 1500
+    elif mode == SculptMode.MULTIRES:
+        size = 150
+    elif mode == SculptMode.DYNTOPO:
+        size = 1500
+    else:
+        raise NotImplementedError
 
     grid_node = group.nodes.new('GeometryNodeMeshGrid')
     grid_node.inputs["Size X"].default_value = 2.0