Update mathjs requirement from ~5.3.0 to ~5.4.0
Update mathjs requirement from ~5.3.0 to ~5.4.0

Updates the requirements on [mathjs](https://github.com/josdejong/mathjs) to permit the latest version.
- [Release notes](https://github.com/josdejong/mathjs/releases)
- [Changelog](https://github.com/josdejong/mathjs/blob/develop/HISTORY.md)
- [Commits](https://github.com/josdejong/mathjs/commits/v5.4.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
snkrsnkampa/Bastion,snkrsnkampa/Bastion