COMP: Update CTK to ensure only used Qt components are expected

List of CTK changes:

$ git shortlog ee5508d6..c0c8e41db --no-merges
Jean-Christophe Fillion-Robin (4):
      COMP: Update ctk_list_to_string to use CMake join implentation if available
      ENH: Display Qt version and Qt components used to configure CTK
      ENH: Simplify setting of CTK_QT5_COMPONENTS ensuring all CTK variables are set
      ENH: Improve setting of CTK_QT5_COMPONENTS based on actual requirements

SuperBuild/External_CTK.cmake

@@ -73,7 +73,7 @@ if(NOT DEFINED CTK_DIR AND NOT Slicer_USE_SYSTEM_${proj})
 
   ExternalProject_SetIfNotDefined(
     Slicer_${proj}_GIT_TAG
-    "ee5508d6eeec882eb39358346c1823b6c0bbe825"
+    "c0c8e41db1318ffab37ffd42aac48bdb72cd8014"
     QUIET
     )