v0.16.149

Changes

packaging: remove unused Dockerfile.alpine (#2470)
It was introduced by #762 and its usage was removed by #779
Fixes #2468

Docker image

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

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.16.149 skipper --help
# arm64
docker run -it registry.opensource.zalan.do/teapot/skipper-arm64:v0.16.149 skipper --help
# arm v7 32bit
docker run -it registry.opensource.zalan.do/teapot/skipper-armv7:v0.16.149 skipper --help