datasource: OpenWrt

[MaineK00n]

https://openwrt.org/advisory/start

$ curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/openwrt/openwrt/security-advisories

https://github.com/openwrt/openwrt/security