Sdss-cherno

✨ Improved

* [18](https://github.com/sdss/cherno/pull/18) Two efficiency improvements:
* The `wait_time` is only used when a correction has actually applied. Otherwise the next iteration start immediately.
* Allow to specify a `--dynamic-exposure-time` that combined with `--max-exposure-time` can be used to set an initial short exposure time. If the field fails to solve the exposure time is automatically increased for the following iteration up to `--max-exposure-time`.

🏷️ Changed

* Set integral term for RA and Dec at APO to 0.01.

🔧 Fixed

* Upgraded SQLAlchemy to `^2.0.0`. It seems that Pandas now requires `>=2.0` to run `read_sql` using a connection URI.
* Increased scale factor tolerance and `max_delta_scale_ppm` for LCO to account for the new IMB position and plate scale.
* Fixed docs building.

✨ Improved

* [17](https://github.com/sdss/cherno/pull/17) Allow to select what cameras to use for guiding or focusing by invoking `cherno set cameras [guide|focus] gfa2 gfa3 ...` (same as `cherno set cameras` but only affects guiding or focusing).

✨ Improved

* Added a warning when a non-zero offset is used.
* Updated Pandas to 2.x.
* Bump `coordio` to 1.9.2 to use new `sdss-sep` package.

🔧 Fixed

* Bump `sdsstools` to 1.5.5 to prevent an issue when pickling the `Guider` object in multiprocessing.

⚙️ Engineering

* Upgrade `astropy` to 6.0.0.

✨ Improved

* Add `GFACOORD` extension to `proc-` frames with the `gfaCoords` table used during guiding.

⚙️ Engineering

* Stop supporting Python 3.9. Support for 3.12.
* Lint with `ruff`.
* Updated workflows for testing and releasing.