Update dependencies on '6.3' in qt/qtshadertools

Change-Id: Ib47920bb1dc7b3af0e4dc835a307295df01a79fb
Reviewed-by: Qt Submodule Update Bot <qt_submodule_update_bot@qt-project.org>

dependencies.yaml

 dependencies:
   ../qtbase:
-    ref: ae082e954195b182a2016fd9bcd894e4562f02a5
+    ref: e851b6ea2c658a9fe6f704b15a07277457b1bb07
     required: true