Update dependencies on '6.3' in qt/qtlanguageserver

Change-Id: I03c1af5d4e93a9fcc1b0c0aad8431c9464c7068d
Reviewed-by: Qt Submodule Update Bot <qt_submodule_update_bot@qt-project.org>

dependencies.yaml

 dependencies:
   ../qtbase:
-    ref: 4738fe98de033c7d09229cbbff8bfb253583384f
+    ref: 1d186e9a9a2e1feb266b700afe5080fc4776ad41
     required: true