actipy 3.4.0

What's Changed

• deprecation: get_stationary_indicator by @chanshing in #54
• refactor: move qc() to processing module, rename to quality_control() and expose to users by @chanshing in #55
• fix(quality-control): check non-increasing timestamps first; dropna when computing wear time by @chanshing in #56
• fix(flag_nonwear): account for NA to calculate wear time stats by @chanshing in #58
• feat(quality-control): add new field DataSpan(days) by @chanshing in #57

Full Changelog: v3.3.0...v3.4.0