Update dependencies on '6.3.2' in qt/qtlanguageserver

Change-Id: I6b1dedd99cdffd75df85304e5dd20973c9926566
Reviewed-by: Qt Submodule Update Bot <qt_submodule_update_bot@qt-project.org>

dependencies.yaml

 dependencies:
   ../qtbase:
-    ref: 9a43d9e559ffe1ca39f6354a7c331ab42c533db0
+    ref: 12dc1dc09d73f5400e1e77181749793885ed9ffc
     required: true