v4.0.0

What's Changed

• CI: Migrate to GitHub Actions by @klauer in #107
• MAINT: update pmps library to v3.0.14 by @ZLLentz in #106
• add encoder to St1K4 and link it by @tongju12 in #109
• fix St1K4 encoder invert issue by @tongju12 in #111
• adding IN and OUT states for ST1K4 by @tongju12 in #112
• fixing st1k4 type error by @tongju12 in #113
• st1k4 following st3k4 by @tongju12 in #115
• st1k4 in position changed from 0 to 2 by @tongju12 in #117
• ENH: motion v3, ppm/wfs pmps coordination by @ZLLentz in #116

Full Changelog: v3.1.0...v4.0.0