Docker: installers: updated flake8 for pylint
Docker: installers: updated flake8 for pylint

ApolloAuto/apollo,ApolloAuto/apollo,xiaoxq/apollo,jinghaomiao/apollo,ApolloAuto/apollo,ycool/apollo,ycool/apollo,xiaoxq/apollo,ApolloAuto/apollo,xiaoxq/apollo,jinghaomiao/apollo,xiaoxq/apollo,ycool/apollo,xiaoxq/apollo,jinghaomiao/apollo,xiaoxq/apollo,ycool/apollo,jinghaomiao/apollo,jinghaomiao/apollo,ApolloAuto/apollo,ycool/apollo,ycool/apollo,ApolloAuto/apollo,jinghaomiao/apollo