* upstream/main: (46 commits)
  xfail flaky test (pydata#8299)
  Most of mypy 1.6.0 passing (pydata#8296)
  Rename `reset_encoding` to `drop_encoding` (pydata#8287)
  Enable `.rolling_exp` to work on dask arrays (pydata#8284)
  Fix `GroupBy` import (pydata#8286)
  Ask bug reporters to confirm they're using a recent version of xarray (pydata#8283)
  Add pyright type checker (pydata#8279)
  Improved typing of align & broadcast (pydata#8234)
  Update ci-additional.yaml (pydata#8280)
  Fix time encoding regression (pydata#8272)
  Allow a function in `.sortby` method (pydata#8273)
  make more args kw only (except 'dim') (pydata#6403)
  Use duck array ops in more places (pydata#8267)
  Don't raise rename warning if it is a no operation (pydata#8266)
  Mandate kwargs on `to_zarr` (pydata#8257)
  copy  the `dtypes` module to the `namedarray` package. (pydata#8250)
  Add xarray-regrid to ecosystem.rst (pydata#8270)
  Use strict type hinting for namedarray (pydata#8241)
  Update type annotation for center argument of dataaray_plot methods (pydata#8261)
  [pre-commit.ci] pre-commit autoupdate (pydata#8262)
  ...