* main: (129 commits)
  docs on specifying chunks in to_zarr encoding arg (pydata#6542)
  [skip-ci] List count under Aggregation (pydata#6711)
  Add `Dataset.dtypes` property (pydata#6706)
  try to import `UndefinedVariableError` from the new location (pydata#6701)
  DOC: note of how `chunks` can be defined (pydata#6696)
  pdyap version dependent client.open_url call (pydata#6656)
  use `pytest-reportlog` to generate upstream-dev CI failure reports (pydata#6699)
  [pre-commit.ci] pre-commit autoupdate (pydata#6694)
  Bump actions/setup-python from 3 to 4 (pydata#6692)
  Fix Dataset.where with drop=True and mixed dims (pydata#6690)
  pass kwargs through from save_mfdataset to to_netcdf (pydata#6686)
  Docs: indexing.rst finetuning (pydata#6685)
  use micromamba instead of mamba (pydata#6674)
  install the development version of `matplotlib` into the upstream-dev CI (pydata#6675)
  Add whatsnew section for v2022.06.0
  release notes for 2022.06.0rc0
  release notes for the pre-release (pydata#6676)
  more testpypi workflow fixes (pydata#6673)
  thin: add examples (pydata#6663)
  Update multidimensional-coords.ipynb (pydata#6672)
  ...