Fix busted docker.list

tests/test.sh

@@ -159,6 +159,7 @@ install_docker () {
     ; apt install apt-transport-https ca-certificates curl gnupg-agent software-properties-common -y \
     && curl -fsSL https://download.docker.com/linux/ubuntu/gpg |  apt-key add - \
     && apt-key fingerprint 0EBFCD88 \
+    && > /etc/apt/sources.list.d/docker.list \
     && add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" \
     && apt update -y \
     && apt install docker-ce docker-ce-cli containerd.io -y \