Merge pull request #1704 from flatcar/krnowak/drop-docker-proxy

Drop app-containers/docker-proxy package

Author: krnowak

.github/workflows/portage-stable-packages-list

@@ -100,7 +100,6 @@ app-cdr/cdrtools
 app-containers/cri-tools
 app-containers/docker
 app-containers/docker-cli
-app-containers/docker-proxy
 app-containers/runc
 
 app-crypt/adcli