COMP: Fix configuration referencing README.md

[jcfr]

Fix regression introduced in 2fe5bde (DOC: Convert README to markdown for adding of badges) through #7197

[jcfr]

This is still failing because (1) the the variable is already set in the CMakeCache.txt (the CI only perform the inner-build) and (2) the SlicerReadApplicationProperties() function do not override the value if already set in the caller scope.

Slicer/CMake/SlicerReadApplicationProperties.cmake

Lines 84 to 89 in dfb6fb8

	# Set property value if not already defined in caller scope
	if(NOT DEFINED ${MY_PROJECT_NAME}_${property_name})
	set(default_value ${${property_name}})
	set(${MY_PROJECT_NAME}_${property_name} "${default_value}" PARENT_SCOPE)
	endif()
	mark_as_superbuild(${MY_PROJECT_NAME}_${property_name})

After locally modifying the cache, the configuration works as expected:

[...]
-- --------------------------------------------------
-- Configuring Slicer application library: qSlicerApp
-- --------------------------------------------------
-- Setting Slicer DESCRIPTION_SUMMARY to 'Medical Visualization and Processing Environment for Research'
-- Setting Slicer DESCRIPTION_FILE to '/home/jcfr/Projects/Slicer/README.md'
-- --------------------------------------------------
-- Configuring Slicer application: SlicerApp
-- --------------------------------------------------
[...]
-- Setting CPACK_PACKAGE_VERSION to '5.5.0-2023-08-29'
-- Setting CPACK_PACKAGE_INSTALL_DIRECTORY to 'Slicer 5.5.0-2023-08-29'
-- Setting CPACK_PACKAGE_DESCRIPTION_FILE to '/home/jcfr/Projects/Slicer/README.md'
-- Setting CPACK_RESOURCE_FILE_LICENSE to '/home/jcfr/Projects/Slicer/License.txt'
-- Setting CPACK_PACKAGE_DESCRIPTION_SUMMARY to 'Medical Visualization and Processing Environment for Research'
-- Configuring done
-- Generating done
-- Build files have been written to: /home/jcfr/Projects/Slicer-Release/Slicer-build

[jcfr]

⚡ 🚀 Dashboard entries have been removed and preview builds for Linux, macOS and Windows have been manually¹ re-triggered.

Footnotes

1. https://github.com/Slicer/DashboardScripts/blob/main/maintenance/guides/re-trigger-nightly-build.md ↩