* go.mod: Update k8s dependencies to 0.20.2 * go.mod: Update coreos/iptables-0.5.0 cni/plugins-0.9.1 * Makefile: Update container image
This vendors a later version of prometheus' golang client (0.8.0 -> 0.9.4) to allow `go mod tidy`to work properly. It also updates the k8s libraries from 0.18.6 to 0.18.8 to avoid hitting https://github.com/kubernetes/kubernetes/issues/91073
* merge gobgp-update into master * update travis.yaml go version: * go get github.com/osrg/gobgp to build gobgp * install git as go get needs it
