Pywps

Changes:

* Skip support for Python 3.7
* Update validate geojson (680).
* Sanitize test suite (684, 683, 682, 681).
* Support Python3.10/3.11, documentation fixes, and general codebase cleanup (677).
* Extended env variable interpolation (675)
* Don't use deprecated distutils module (672).
* Fixed tox.ini parameter passenv (670).
* Improve the implementation of pywps.inout.literaltypes (668).
* Fix tests/test_capabilities.py with correct check of request case (665).
* Activate async test (664).
* Move Sleep process definition (663).
* Remove use of mutable as default value in Process.__init__ (660).
* Better handle of crashed processes (659).
* Change coveralls branch from master to main (655).

Changes:
* Fix test section in README.md about pytest (653)
* Fix ComplexInput.from_json to handle data_format.encoding="base64" (652)
* Fix invalide use of encode on bytes object (651)
* Fix JSON encoding of CRS type in BoundingBox (610)
* Modernize CI using Tox, add a "[dev]" recipe, re-enable coveralls (643)
* Fix deprecated logging.warn() call (642)

Changes:
* Fix app/Process.py to cope with None mimetype (620)
* Add security policy (621)
* Better error handling in WPSRequest.json() (622)
* Fix output mimetype assuming string (626)
* Resolve invalid Exception.msg unknown attribute (629)
* An input default value is only set when min_occurs==0 (631)
* Fix Sphinx build for UbuntuGIS packages (634)
* Remove gdal from dependencies (638)
* Fix bug triggered when storage requires the creation of recursive directories (636)

Changes:
* Initial implementation of OGC API - Processes / REST API (612, 614)

Changes:
* Fixed lxml default parser (616).

Changes:
* Fixed sphinx build (608)