Install Theodolite volumes using Helm

Closes #114

See merge request !192

Add new SLO checker for the metric of skipped/dropped-records

Closes #250

See merge request !185

update helm charts

Closes #251 and #260

See merge request !194

Merge branch 'master' of git.se.informatik.uni-kiel.de:she/theodolite into 250-add-dropped-records-slo-correct-branch

Update Docs for Release 0.5.0

See merge request !191

Update demant-metric notebooks in order to run with the new implementation

Closes #254

See merge request !190

We still need to find a good solutions for this

Co-authored-by: Björn Vonheiden <bjoern.vonheiden@hotmail.de>

Add confluent maven reposetory to kstreams-commons

See merge request !189