Wistiapy

Allows media.duration field to be null in webhook payloads

Make `MediaUpdatedPayload.previous_attributes` optional, to match observed behaviour.

**Full Changelog**: https://github.com/Edrolo/wistiapy/compare/v0.0.11...v0.0.12

Add webhooks support

**Full Changelog**: https://github.com/Edrolo/wistiapy/compare/v0.0.10...v0.0.11

What's Changed
* Removed reference to session object. by i-am-david-fernandez in https://github.com/Edrolo/wistiapy/pull/4

New Contributors
* i-am-david-fernandez made their first contribution in https://github.com/Edrolo/wistiapy/pull/4

**Full Changelog**: https://github.com/Edrolo/wistiapy/compare/v0.0.9...v0.0.10

Minor updates

What's Changed
* Add support for the recommended auth method by Wistia when hitting their Data API by VincentHokie in https://github.com/Edrolo/wistiapy/pull/3
* Sourcery refactored master branch by sourcery-ai in https://github.com/Edrolo/wistiapy/pull/2
* Add tested support for Python 3.8 - 3.11
* Remove tested support for Python 3.6
* Update Schematics requirement to remove deprecation warnings
* Update Github actions versions

New Contributors
* sourcery-ai made their first contribution in https://github.com/Edrolo/wistiapy/pull/2
* VincentHokie made their first contribution in https://github.com/Edrolo/wistiapy/pull/3

**Full Changelog**: https://github.com/Edrolo/wistiapy/compare/v0.0.8...v0.0.9

Use schematics for the models