Remove docker install/enable steps

.forgejo/workflows/docker-image.yml

@@ -10,10 +10,6 @@ jobs:
     steps:
       - name: Check out the repo
         uses: actions/checkout@v2
-      - name: Install docker
-        uses: https://git.wbrawner.com/papodaca/install-docker-action@main
-      - name: Enable docker
-        run: systemctl enable --now docker.service
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v4