chore: bump libc to 0.2.154

[SteveLauC]

What does this PR do

Bump libc to 0.2.154

Checklist:

• I have read CONTRIBUTING.md
• I have written necessary tests and rustdoc comments
• A change log has been added if this PR modifies nix's API

[SteveLauC]

I am considering a new release, as requested in this comment. We have breaking changes, so the next version has to be 0.29.0, there are few things I would like to finish before the release:

1. Revert the From<libc::sigaction> impl introduced in feat: make SigAction repr(transparent)&From<raw>&Into<raw> #2326, since we are unclear about this issue Make all Nix libc wrapper types repr(transparent)/From<libc::xx>/Into<libc::xx> #2327
2. Impl could not find ucontext in nix for aarch64-linux-android #2360 if we have all the types and constants needed available in libc 0.2.154
3. Give Replacement nix::fcntl::Flock does not cover all use cases for deprecated nix::fcntl::flock #2356 a fix
4. (Not sure) remove deprecated interfaces that are deprecated before Nix 0.27.0?

cc @asomers, hi, is there anything you would to do for this release?

[asomers]

@SteveLauC there's nothing I want to add. The only thing I'm working on now is I/O Safety for sys/aio. But don't wait for that. This feature is surprisingly easy to do, but surprisingly hard to do well. So it's taking me a long time.

[SteveLauC]

Get it:)