Xradar

This is the first version which uses datatree directly from xarray. Thus, xarray is pinned to version >= 2024.10.0.

* FIX: Convert volumes to_cfradial1 containing sweeps with different range and azimuth shapes, raise for different range bin sizes ({issue}`233`) by [syedhamidali](https://github.com/syedhamidali), ({pull}`234`) by [kmuehlbauer](https://github.com/kmuehlbauer).
* FIX: Correctly handle 8bit/16bit, big-endian/little-endian in nexrad reader (PHI and ZDR) ({issue}`230`) by [syedhamidali](https://github.com/syedhamidali), ({pull}`231`) by [kmuehlbauer](https://github.com/kmuehlbauer).
* ENH: Refactoring all xradar backends to use `from_dict` datatree constructor. Test for `_get_required_root`, `_get_subgroup`, and `_get_radar_calibration` were also added ({pull}`221`) by [aladinor](https://github.com/aladinor)
* ENH: Added pytests to the missing functions in the `test_xradar` and `test_iris` in order to increase codecov in ({pull}`228`) by [syedhamidali](https://github.com/syedhamidali).
* ENH: Updated Readme ({pull}`226`) by [syedhamidali](https://github.com/syedhamidali).
* ADD: Added new module `transform` for transforming CF1 data to CF2 and vice versa ({pull}`224`) by [syedhamidali](https://github.com/syedhamidali).
* Use DataTree from xarray and add xarray nightly run ({pull}`213`, {pull}`214`, {pull}`215`, {pull}`218`) by [kmuehlbauer](https://github.com/kmuehlbauer).
* ADD: Added new accessor `map_over_sweeps` for volume operations on DataTrees and a matching decorator ({pull}`203`) by [syedhamidali](https://github.com/syedhamidali).

This is the last version which uses datatree from xarray-contrib/datatree. Thus, xarray is pinned to version 2024.9.0.

* ADD: Added `apply_to_sweeps` function for applying custom operations to all sweeps in a `DataTree` radar volume Implemented by [syedhamidali](https://github.com/syedhamidali), ({pull}`202`).
* ADD: Metek Micro Rain Radar 2 reader by [rcjackson](https://github.com/rcjackson), ({pull}`200`) by [rcjackson](https://github.com/rcjackson).

* FIX: Azimuth dimension now labelled correctly for Halo Photonics data ({pull}`206`) by [rcjackson](https://github.com/rcjackson).
* FIX: do not apply scale/offset in datamet reader, leave it to xarray instead ({pull}`209`) by [kmuehlbauer](https://github.com/kmuehlbauer).

* FIX: Notebooks are now conforming to ruff's style checks by [rcjackson](https://github.com/rcjackson), ({pull}`199`) by [rcjackson](https://github.com/rcjackson).
* FIX: use dict.get() to retrieve attribute key and return "None" if not available, ({pull}`200`) by [kmuehlbauer](https://github.com/kmuehlbauer)

* FIX: use rstart in meter for ODIM_H5/V2_4 ({issue}`196`) by [kmuehlbauer](https://github.com/kmuehlbauer), ({pull}`197`) by [kmuehlbauer](https://github.com/kmuehlbauer).

* FIX: Passing 'engine' kwarg in "open_cfradial1_datatree" method to enable fsspec.open when using url ({issue}`194`) by [aladinor](https://github.com/aladinor), ({pull}`195`) by [aladinor](https://github.com/aladinor)