v0.14.24

Changes

Fixes goroutine leaks in tests (#2169)
Adds main_test.go with noleak.CheckMain(m) into more packages and fixes leaks in tests.

Docker image

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

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.14.24 skipper --help
# arm64
docker run -it registry.opensource.zalan.do/teapot/skipper-arm64:v0.14.24 skipper --help
# arm v7 32bit
docker run -it registry.opensource.zalan.do/teapot/skipper-armv7:v0.14.24 skipper --help