Update renderer submodule

UX3D-haertl · UX3D-haertl · commit f8c21be3d665 · 2026-01-30T13:43:23.000+01:00
diff --git a/glTF-Sample-Renderer b/glTF-Sample-Renderer
@@ -1 +1 @@
-Subproject commit 352c40b780764d398e7897b15b9af9e287106d5c
+Subproject commit 15abf84b2ca03e138582958ec0876392cff0166a
