Fix FastDDS test dependencies not guarded by --ros2 flag on Linux and Windows

[LuisPovedaCano]

Fixes #9668

Server tests no longer pull in FastDDS headers or link fastrtps/fastcdr/foonathan when --ros2 is not passed. test_dds_middleware.cpp is also excluded from the source glob in that case.

Setup.sh and Setup.bat now both emit LIBCARLA_WITH_ROS2 into the generated CMakeLists.txt.in so the flag is set on both platforms.

Setup.bat: pin foonathan_memory_vendor to v1.3.2 (matches Setup.sh) so Windows builds the same library version as Linux and Carla.Build.cs expect.

CMakeLists.txt: replace hardcoded foonathan version in lib filenames with a glob so future version bumps do not require manual edits. Adds a FATAL_ERROR if the library is not found.

Where has this been tested?

• Tested in Ubuntu
• Tested in Windows

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