maybe we don't have to install docker.io

.github/workflows/tunasync.yml

@@ -37,10 +37,9 @@ jobs:
     - name: Setup test dependencies
       run: |
         sudo apt update
-        sudo apt install -y cgroup-bin docker.io
+        sudo apt install -y cgroup-bin
-        sudo systemctl unmask docker
+        /usr/bin/docker pull alpine
-        sudo systemctl start docker
+        /usr/bin/docker images
-        sudo docker pull alpine
         lssubsys -am
         sudo cgcreate -a $USER -t $USER -g cpu:tunasync
         sudo cgcreate -a $USER -t $USER -g memory:tunasync