build(docker): optimize image build workflow

.gitea/workflows/docker-image.yml

@@ -12,7 +12,7 @@ jobs:
     name: Build and Push Docker Image
     runs-on: gitea-label
     container:
-      image: node:24-bookworm
+      image: cozsweet-act-runner-node24-docker:latest
     env:
       NEXT_TELEMETRY_DISABLED: "1"
       SENTRY_UPLOAD_SOURCEMAPS: "0"
@@ -21,19 +21,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Setup Docker CLI
-        run: |
-          set -eu
-
-          if ! command -v docker >/dev/null 2>&1; then
-            apt-get update
-            apt-get install -y --no-install-recommends docker.io
-            rm -rf /var/lib/apt/lists/*
-          fi
-
       - name: Verify Docker
         run: |
           node --version
+          pnpm --version
           docker version
           docker info