[lld] [lld,CMake] Include Version.inc when LLVM_DISTRIBUTION_COMPONENTS contains lld-headers (PR #127946)

[Maksim Levental via llvm-commits]

makslevental wrote:

> Couldn't you run the pipeline locally and figure out the missing file issue earlier? Why do you need to trial and error for the llvm-project part?

The build system in Triton is complex - requiring separately staged PRs to separate branches ([`llvm-head`](https://github.com/triton-lang/triton/pull/5907), `main` is the one you found). In addition the downstream requirements were being adjusted - I had of course tested locally with downstream for successful _linking_ but missed the requirement for the version.


https://github.com/llvm/llvm-project/pull/127946