Bump assets/syntaxes/02_Extra/Crontab from 54f1fa7 to d89ab2a

Bumps [assets/syntaxes/02_Extra/Crontab](https://github.com/michaelblyons/SublimeSyntax-Crontab) from `54f1fa7` to `d89ab2a`.
- [Release notes](https://github.com/michaelblyons/SublimeSyntax-Crontab/releases)
- [Commits](michaelblyons/SublimeSyntax-Crontab@54f1fa7...d89ab2a)

---
updated-dependencies:
- dependency-name: assets/syntaxes/02_Extra/Crontab
  dependency-version: d89ab2a1f8d59c6aaf2bbb3e06e98939dec96815
  dependency-type: direct:production
...

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

Author: dependabot[bot]