Package version vs CMake project versions mismatch

[francocipollone]

Summary

What the title says. Root CMakeLists file across all the repository doesn't match with the version stated in the package xml

[francocipollone]

Context

ament_package() call at the end of the root CMakeList file in each package is getting the version information from the package.xml file

https://github.com/ament/ament_cmake/blob/rolling/ament_cmake_core/cmake/core/ament_package_xml.cmake#L83-L88

In a way that the version stated in the root CMakeFile: e.g: project(maliput LANGUAGES C CXX VERSION 3.0.0) won't be
used and will be replaced by the one obtained from package XML.

Proposal

With this context the simplest solution here would be to remove the VERSION field in the project command in all the packages:
e.g: project(maliput LANGUAGES C CXX VERSION 3.0.0) --> project(maliput LANGUAGES C CXX)

[francocipollone]

wdyt @agalbachicar

[agalbachicar]

I would rather prefer to keep them both in sync.