ITK nightly version update

This commit updates:
  (1) SHA used in CMakeLists.txt to checkout ITK sources
          (InsightSoftwareConsortium/ITK@d1b4c9b566)
  (2) VERSION variable set in itkVersion.py

It was automatically generated by the script update_python_version.sh [1]

[1] https://github.com/InsightSoftwareConsortium/ITKPythonPackage/blob/e600816/scripts/update_python_version.py

Author: kwrobot

CMakeLists.txt

@@ -90,7 +90,7 @@ if(ITKPythonPackage_SUPERBUILD)
   set(ITK_REPOSITORY "https://github.com/InsightSoftwareConsortium/ITK.git")
 
  # ITK nightly-master 2022-07-27
-  set(ITK_GIT_TAG "cb2ff13ba0")
+  set(ITK_GIT_TAG "d1b4c9b566")
 
   #-----------------------------------------------------------------------------
   # A separate project is used to download ITK, so that it can reused

itkVersion.py

@@ -1,4 +1,4 @@
-VERSION = '5.3rc04.dev20220827+142.gcb2ff13ba0'
+VERSION = '5.3rc04.dev20220829+144.gd1b4c9b566'
 
 def get_versions():
     """Returns versions for the ITK Python package.