Bump basic-ftp from 5.0.3 to 5.3.1

Bumps [basic-ftp](https://github.com/patrickjuchli/basic-ftp) from 5.0.3 to 5.3.1.
- [Release notes](https://github.com/patrickjuchli/basic-ftp/releases)
- [Changelog](https://github.com/patrickjuchli/basic-ftp/blob/master/CHANGELOG.md)
- [Commits](patrickjuchli/basic-ftp@v5.0.3...v5.3.1)

---
updated-dependencies:
- dependency-name: basic-ftp
  dependency-version: 5.3.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]