Sdss-lvmscp

🚀 Added

* [25](https://github.com/sdss/lvmscp/pull/25) Added new command `get-etr` which returns the estimated remaining time for the exposure including readout.

🔥 Breaking changes

* Dropped support for Python 3.9.

✨ Improved

* Bumped `archon` to 0.14.0.

⚙️ Engineering

* Format code using `ruff`.

✨ Improved

* Cast NaNs in header to nulls.

🏷️ Changed

* Disable download of IERS tables. Updated `astropy-iers-data`.

✨ Improved

* [24](https://github.com/sdss/lvmscp/pull/24) Support `archon` 0.13.x.

🔧 Fixed

* Added `fitsio` to docker image.

💥 Breaking changes

* Support for Python 3.8 has been deprecated.

✨ Improved

* Upgraded `archon` to 0.12.0.