v0.13.124

Changes

Uses t.Setenv in tests (#1870)
Introduced by golang/go#41260
t.Setenv properly restores or unsets an environment variable.

Docker image

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

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.13.124 skipper --help
# arm64
docker run -it registry.opensource.zalan.do/teapot/skipper-arm64:v0.13.124 skipper --help
# arm v7 32bit
docker run -it registry.opensource.zalan.do/teapot/skipper-armv7:v0.13.124 skipper --help