Don't use a specific version for the main-cmake-pkg (CMake throws and error)

[ukicomputers]

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Note for reviewers: do we need to check if package isn't available, and then throw error (something like this):

if(MyPackage_FOUND)
    message(STATUS "MyPackage found!")
else()
    message(WARNING "MyPackage not found.")
endif()

Or just do nothing (CMake will throw an error if package is not found)?