Update pytest-sugar to 0.8.0

[pyup-bot]

There's a new version of pytest-sugar available.
You are currently using 0.7.1. I have updated it to 0.8.0

These links might come in handy: PyPI | Changelog | Homepage

Changelog

0.8.0

^^^^^^^^^^^^^^^^^^^

• Release as an universal wheel
• Pytest3 compatibility
• Treat setup/teardown failures as errors
• Fix path issue in --new-summary
• Disable sugar output when not in terminal, should help with testing other pytest plugins
• Add double colons when in verbose mode
• Make --new-summary default, replaced flag with --old-summary

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖