v0.1.9

What's Changed

• MNT use codecov action by @mvdoc in #28
• Bump codecov/codecov-action from 4 to 5 by @dependabot in #30
• FIX Delayer to deal with recent sklearn versions by @mvdoc in #34
• MNT test more python versions by @mvdoc in #35
• FIX various plotting fixes by @mvdoc in #32

Full Changelog: v0.1.7...v0.1.9