Bump .zprezto from 457ade4 to 347441a

Bumps [.zprezto](https://github.com/sorin-ionescu/prezto) from `457ade4` to `347441a`.
- [Commits](sorin-ionescu/prezto@457ade4...347441a)

---
updated-dependencies:
- dependency-name: ".zprezto"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>