ci(workflows): 配置 Docker 支持不安全的注册表

- 在 Docker workflow 中添加配置，允许访问指定的不安全注册表
- 创建并写入 /etc/docker/daemon.json 文件，设置 insecure-registries 项
- 发送信号重启 Docker 守护进程使配置生效
- 增加延时等待 Docker 重启完成

.gitea/workflows/docker.yml

@@ -12,6 +12,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Configure Docker for insecure registry
+        run: |
+          mkdir -p /etc/docker
+          cat > /etc/docker/daemon.json << 'EOF'
+          {
+            "insecure-registries": ["192.168.100.120:8418"]
+          }
+          EOF
+          pkill -HUP dockerd || true
+          sleep 3
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with: