chore(gh-actions): install conntrack before minikube

Author: njhale

.github/workflows/test-scripts.yml

@@ -24,6 +24,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - run: |
+        sudo apt-get install conntrack
         curl -sLo minikube "$(curl -sL https://api.github.com/repos/kubernetes/minikube/releases/latest | jq -r '[.assets[] | select(.name == "minikube-linux-amd64")] | first | .browser_download_url')"
         chmod +x minikube
         sudo mv minikube /bin/