chore(deps): bump zsh-completions from d2b2875 to 5999c3a (#1016)

Bumps [custom/plugins/zsh-completions](https://github.com/clarketm/zsh-completions) from `d2b2875` to `5999c3a`.
- [Release notes](https://github.com/clarketm/zsh-completions/releases)
- [Commits](clarketm/zsh-completions@d2b2875...5999c3a)

---
updated-dependencies:
- dependency-name: custom/plugins/zsh-completions
  dependency-version: 5999c3acf8c69d5e7fe0e04f8c32bc3abf797f55
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Signed-off-by: Lucas Larson <LucasLarson@riseup.net>

Author: dependabot[bot]