update dependencies

hjacobs#47 use Background propagation policy (hjacobs#54)

* hjacobs#47 use Background propagation policy

* update dependencies

Switch to poetry & black (hjacobs#49)

* Pipenv -> poetry

* format code with black

* fix types for mypy

* ignore mypy cache

* use poetry

update deps

switching to CalVer

hjacobs#28 avoid orphaned pods (hjacobs#31)

update dependencies

use pykube-ng instead of pykube (hjacobs#23)

* use pykube-ng instead of pykube

* pykube-ng already expands home dir (~)

update dependencies

Emit event on resource deletion (hjacobs#9)

* hjacobs#4 emit event on resource deletion

* test events