build(deps): bump pyexcel from 0.6.3 to 0.6.4
build(deps): bump pyexcel from 0.6.3 to 0.6.4

Bumps [pyexcel](https://github.com/pyexcel/pyexcel) from 0.6.3 to 0.6.4.
- [Release notes](https://github.com/pyexcel/pyexcel/releases)
- [Changelog](https://github.com/pyexcel/pyexcel/blob/dev/CHANGELOG.rst)
- [Commits](https://github.com/pyexcel/pyexcel/compare/v0.6.3...v0.6.4)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
rloomans/measure-mate,rloomans/measure-mate,rloomans/measure-mate,rloomans/measure-mate