v0.15.33

Changes

filters/auth/grant: refactors cookie refresh (#2241)
Decouples cookie refresh from oidcClaimsCacheKey to allow future modifications
of the tokenContainer.

Docker image

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

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.15.33 skipper --help
# arm64
docker run -it registry.opensource.zalan.do/teapot/skipper-arm64:v0.15.33 skipper --help
# arm v7 32bit
docker run -it registry.opensource.zalan.do/teapot/skipper-armv7:v0.15.33 skipper --help