Django-datawatch

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- this only to validate github actions publish to pypi

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- fix and update build environment and dependencies

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- Allow extending acknowledgements 47
- Handle exception during acknowledgment 48

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- Linting fixes

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- Revert example app check execution to be synchronous 43
- Remove dependency to docker-hostmanager 44
- Add optional superuser debug info to detail view 45

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- Upgrade packages
- BREAKING CHANGE! Remove Python 2.x support