v0.4.0

Changelog

cfdb5d9 Bump gopkg.in/yaml.v2 from 2.2.1 to 2.2.2
7a7d74b Update issue templates
fd864d9 cmd: remove docker build from goreleaser
fdcdfd4 cronjob: add a check for having startingDeadlineSeconds set
39aa6cc docker: fix the release dockerfile
f481a87 mod: update kubernetes dependencies
b401e23 service: advice against use of nodeport services