v0.13.38

Changes

refactor out redisclient from ratelimit/redis to net package (#1693)
fix: redis ratelimit tests to use net.RedisClient
added test for the redisclient

Docker image

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

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.13.38 skipper --help
# arm64
docker run -it registry.opensource.zalan.do/teapot/skipper-arm64:v0.13.38 skipper --help
# arm v7 32bit
docker run -it registry.opensource.zalan.do/teapot/skipper-armv7:v0.13.38 skipper --help