fix(cicd): install Docker CLI via static binary instead of apt

.gitea/workflows/deploy.yaml

@@ -24,7 +24,9 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Docker CLI
-        run: apt-get update -qq && apt-get install -y -qq docker.io
+        run: |
+          curl -fsSL https://download.docker.com/linux/static/stable/aarch64/docker-27.3.1.tgz \
+            | tar xzf - --strip-components=1 -C /usr/local/bin docker/docker
 
       - name: Login to Gitea registry
         run: |

infrastructure/terraform/act-runner.tf

@@ -100,10 +100,11 @@ resource "kubernetes_deployment" "act_runner" {
           command = ["/bin/sh", "-c"]
           args = [<<-EOT
             set -e
-            echo "Waiting for Docker daemon..."
+            echo "Waiting for Docker daemon on :2375..."
-            until docker -H tcp://localhost:2375 info > /dev/null 2>&1; do
+            until nc -z localhost 2375 2>/dev/null; do
               sleep 2
             done
+            sleep 1
             echo "Docker daemon ready."
             if [ ! -f /data/.runner ]; then
               act_runner register \