Django-gisserver

* Added `PROPERTYNAME` support
* Added rendering of `<wfs:truncatedResponse>` when errors happen during output streaming.
* Fixed accessing a feature with 3 geometry fields (fixed our PostgreSQL `ST_Union` syntax).
* Make sure Django 4.1+ won't do double prefetches on relations that we prefetch.
* Hide the erroneous output formats in `GetCapabilities` that are supported for FME.
* Bump requirements to non-vulnerable versions (of lxml and orjson).
* Improved documentation.
* Cleaned up code, removing some internal methods.
* Cleaned up leftover Python 3.7 compat code.

* Fix 500 error when `model_attribute` points to a dotted-path.
PR thanks to [sposs](https://github.com/sposs).
* Updated pre-commit configuration and test matrix.

* Added `GISSERVER_COUNT_NUMBER_MATCHED` setting to allow disabling "numberReturned" counting.
This will avoid an expensive PostgreSQL COUNT query, speeding up returning large sets.
* Added basic support for array fields in `GetPropertyValue`.
* Optimized GML rendering performance (around 15-20% faster on large datasets).
* Optimized overall rendering performance, which improved GeoJSON/CSV output too.
* Developers: updated pre-commit hooks
* Cleaned up leftover Python 3.7 compat code.

* Django 5 support added.

Contributors
We would like to thank the following contributors
for their work on this release.

- [tomdtp](https://github.com/tomdtp)

* WFS endpoints now accept a GML version number in their OUTPUTFORMAT.

* Workaround for FME doing a DescribeFeatureType with the wrong outputformat.
* Dropped support for Django versions < 3.2 and Python < 3.9.
* Minor optimizations.