Update dependencies on '6.3.1' in qt/qtshadertools

Change-Id: I52360a744c4501c5caf0bdc840518e20dc0308aa
Reviewed-by: Qt Submodule Update Bot <qt_submodule_update_bot@qt-project.org>

dependencies.yaml

 dependencies:
   ../qtbase:
-    ref: 8727d61475adee633edfb483eca53752694935fd
+    ref: 8483dcde90f40cdfd0a0ec4245b03610b46b6cae
     required: true