v0.17.26

Changes

build: remove cicheck (#2553)
Make cicheck is equvalent to shortcheck due to wrong redis build tag
use, see #1854
This change removes redis build tag, build comments and replaces cicheck
with the shortcheck target.
Fixes #1854

Multiarch Docker image

Multiarch Docker image is available in Github's docker registry:

docker run -it ghcr.io/zalando/skipper:v0.17.26 skipper --help

Docker image

Docker image is available in Zalando's Open Source registry:

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.17.26 skipper --help