zsh-autosuggestions: 0.4.2 -> 0.4.3 (#40949)

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/zsh-autosuggestions/versions.

These checks were done:

- built on NixOS

- 0 of 0 passed binary check by having a zero exit code.
- 0 of 0 passed binary check by having the new version present in output.
- found 0.4.3 with grep in /nix/store/dvwkp03wvr20n7yf3738hxsl9h1ab02i-zsh-autosuggestions-0.4.3
- directory tree listing: https://gist.github.com/dd361ac28a6f251b013a1fafa71c394e
- du listing: https://gist.github.com/cb334bbb9559eb43e36794d276a97db9