chore(deps): bump tar and pdfjs-dist in /src/interfaces/slack_bot
Removes [tar](https://github.com/isaacs/node-tar). It's no longer used after updating ancestor dependency [pdfjs-dist](https://github.com/mozilla/pdf.js). These dependencies need to be updated together.
Removes `tar`
Updates `pdfjs-dist` from 4.2.67 to 4.10.38
- [Release notes](https://github.com/mozilla/pdf.js/releases)
- [Commits](https://github.com/mozilla/pdf.js/compare/v4.2.67...v4.10.38)
---
updated-dependencies:
- dependency-name: tar
dependency-version:
dependency-type: indirect
- dependency-name: pdfjs-dist
dependency-version: 4.10.38
dependency-type: direct:production
...
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