Hi, I use nodepool-builder build diskimages. diskimage-builder run `"curl -v -L -o source-repositories/.download.qg00hgu8 -w '%{http_code}' --connect-timeout 10 --retry 3 --retry-delay 30 https://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img -z"`,  **timeout occured**.
Is there any parameter for diskimages to set the timeout? thanks.
diskimages config like follow
```
diskimages:
  - name: ubuntu-focal
    pause: false
    elements:
      - ubuntu-minal
      - vm
      - simple-init
      - nodepool-base
      - cache-devstack
      - initialize-urandom
      - growroot
      - infra-package-needs
    release: focal
    username: zuul
    env-vars:
      TMPDIR: /opt/dib_tmp
      DIB_CHECKSUM: '1'
      DIB_IMAGE_CACHE: /opt/dib_cache
      DIB_APT_LOCAL_CACHE: '0'
      DIB_DISABLE_APT_CLEANUP: '1'
      DIB_DEBOOTSTRAP_EXTRA_ARGS: '--no-check-gpg'
      DIB_DEBIAN_COMPONENTS: 'main,universe'
      DIB_CUSTOM_PROJECTS_LIST_URL: 'file:///etc/nodepool/repos.yaml'
      GIT_HTTP_LOW_SPEED_TIME: '300'
      GIT_HTTP_LOW_SPEED_LIMIT: '1000'
      ZUUL_USER_SSH_PUBLIC_KEY: '/var/lib/nodepool/.ssh/id_rsa.pub'
```