BUG: Update CTK to fix Fix warning related to missing active camera

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vtkLightBoxRendererManager - Fix warning related to missing active camera

This issue was occurring after (1) adding a markup and (2) registering
a custom Slicer layout having at least on Slice view.

It addresses the following warning:

  WorldToView: no active camera, cannot compute world to view, returning 0,0,0

The "no active camera" warning/issue is also discussed in Slicer issue
#1690 but note that this commit does NOT address that problem.
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$ git shortlog cb53ac3..07222d0 --no-merges
Jean-Christophe Fillion-Robin (1):
      vtkLightBoxRendererManager - Fix warning related to missing active camera

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23841 3bd1e089-480b-0410-8dfb-8563597acbee