0.15.12

• chore: update datar-pandas to version ^0.6
  • fix: fix fct_recode and fct_collapse with ordered factor (#216)
  • fix: handle MultiIndex in _agg_result_compatible (#214)
  • feat: suport pandas.Grouper() for group_by (#215)
• chore: update datar-arrow to version ^0.2
  • chore: bump pyarrow to ^20

Full Changelog: 0.15.11...0.15.12