chore: Release rustix version 0.38.5

[heiher]

Bump up to v0.38.5

[heiher]

Issue: #764

[sunfishcode]

Thanks for this branch, however I use cargo-release to create version-bump commits so a manual PR isn't needed.

I've now released 0.38.5.

[utkarshgupta137]

@sunfishcode Getting build errors:

error[E0433]: failed to resolve: could not find `FsConfigCmd` in `types`
   --> /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustix-0.38.5/src/backend/linux_raw/mount/syscalls.rs:214:27
    |
214 |             super::types::FsConfigCmd::Create,
    |                           ^^^^^^^^^^^ could not find `FsConfigCmd` in `types`

error[E0433]: failed to resolve: could not find `FsConfigCmd` in `types`
   --> /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustix-0.38.5/src/backend/linux_raw/mount/syscalls.rs:228:27
    |
228 |             super::types::FsConfigCmd::Reconfigure,
    |                           ^^^^^^^^^^^ could not find `FsConfigCmd` in `types`

error[E0277]: the trait bound `reg::ArgReg<'_, A3>: From<MountFlagsArg>` is not satisfied
   --> /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustix-0.38.5/src/backend/linux_raw/arch/mod.rs:258:17
    |
258 |               $a3.into(),
    |                   ^^^^ the trait `From<MountFlagsArg>` is not implemented for `reg::ArgReg<'_, A3>`
    |
   ::: /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rustix-0.38.5/src/backend/linux_raw/mount/syscalls.rs:23:13
    |
23  |           ret(syscall_readonly!(
    |  _____________-
24  | |             __NR_mount,
25  | |             source,
26  | |             target,
...   |
29  | |             data
30  | |         ))
    | |_________- in this macro invocation
    |
    = help: the following other types implement trait `From<T>`:
              <reg::ArgReg<'a, Num> as From<&'a CStr>>
              <reg::ArgReg<'a, Num> as From<&'a mut MaybeUninit<T>>>
              <reg::ArgReg<'a, Num> as From<&'a mut [MaybeUninit<T>]>>
              <reg::ArgReg<'a, Num> as From<(backend::fs::types::Mode, backend::fs::types::FileType)>>
              <reg::ArgReg<'a, Num> as From<*const T>>
              <reg::ArgReg<'a, Num> as From<*mut T>>
              <reg::ArgReg<'a, Num> as From<Advice>>
              <reg::ArgReg<'a, Num> as From<BorrowedFd<'a>>>
            and 18 others
    = note: required for `MountFlagsArg` to implement `Into<reg::ArgReg<'_, A3>>`
    = note: this error originates in the macro `syscall_readonly` (in Nightly builds, run with -Z macro-backtrace for more info)

Some errors have detailed explanations: E0277, E0433.
For more information about an error, try `rustc --explain E0277`.
error: could not compile `rustix` (lib) due to 3 previous errors