ENH: Migrate example itkGrayscaleFunctionDilateImageFilter #969

Job	Run time
build-test-cxx (windows-2022)	26m 35s
build-test-cxx (macos-14)	12m 0s
build-test-documentation (ubuntu-24.04)	46m 20s
build-test-python-superbuild (macos-15)	23m 48s
build-test-notebooks (ubuntu-24.04)	2m 16s
build-test-cxx (ubuntu-24.04)	19m 52s
build-test-notebooks (macos-14)	2m 31s
build-test-python-superbuild (windows-2022)	23m 53s
build-test-python-superbuild (ubuntu-24.04)	23m 58s
build-test-notebooks (windows-2022)	3m 39s
	3h 4m 52s

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