Bump pyexcel-xls from 0.5.5 to 0.5.7
Bump pyexcel-xls from 0.5.5 to 0.5.7

Bumps [pyexcel-xls](https://github.com/pyexcel/pyexcel-xls) from 0.5.5 to 0.5.7.
- [Release notes](https://github.com/pyexcel/pyexcel-xls/releases)
- [Changelog](https://github.com/pyexcel/pyexcel-xls/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pyexcel/pyexcel-xls/compare/v0.5.5...v0.5.7)

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