Fix build on loongarch64

[wezm]

On my loongarch64 Linux system tiny fails to build with this error originating in nix:

error[E0432]: unresolved import `self::consts`
  --> /home/wmoore/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.26.4/src/sys/ioctl/linux.rs:60:15
   |
60 | pub use self::consts::*;
   |               ^^^^^^ could not find `consts` in `self`

This PR bumps nix used by term_input to the next version, which resolves the issue. There are much newer versions of nix but I decided to be conservative in the bump.

The fs feature needs to be added to nix as the fcntl stuff was put behind that cargo feature:

error[E0432]: unresolved imports `nix::fcntl::FcntlArg`, `nix::fcntl::OFlag`, `nix::fcntl::fcntl`
   --> crates/term_input/src/lib.rs:20:18
    |
 20 | use nix::fcntl::{FcntlArg, OFlag, fcntl};
    |                  ^^^^^^^^  ^^^^^  ^^^^^ no `fcntl` in `fcntl`
    |                  |         |
    |                  |         no `OFlag` in `fcntl`
    |                  no `FcntlArg` in `fcntl`
    |
note: found an item that was configured out
   --> /home/wmoore/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.27.1/src/fcntl.rs:458:10
    |
453 | #![feature = "fs"]
    |    -------------- the item is gated behind the `fs` feature

[osa1]

Thanks!