Should Milestones be like `LLVM 18.1.X Release` now?

[wangpc-pp]

We have changed the scheme of version number:

• https://discourse.llvm.org/t/rfc-name-the-first-release-from-a-branch-n-1-0-instead-of-n-0-0/75384
• https://discourse.llvm.org/t/llvm-18-release-schedule/76175

[tstellar]

I've changed the milestone name to LLVM 18.X Release.

[nikic]

Note that when changing the milestone name, it's also necessary to update the workflow in LLVM Release Status. I've done that now.

(By the way, do we also want to add PRs with the milestone to the project? Currently we only add issues.)

[tstellar]

(By the way, do we also want to add PRs with the milestone to the project? Currently we only add issues.)

Yes, we do.