Add FOSS-LÄND x OpenChain for general

[confs-tech-bot]

Conference information

Website: https://openchainproject.org/foss-land-x-openchain-2027

Github: @mkurzman

// general

{
  "name": "FOSS-LÄND x OpenChain",
  "url": "https://openchainproject.org/foss-land-x-openchain-2027",
  "startDate": "2027-03-22",
  "endDate": "2027-03-24",
  "city": "Stuttgart",
  "country": "Germany",
  "online": false,
  "locales": "EN,DE",
  "cocUrl": "https://github.com/Open-Source-Compliance/Sharing-creates-value/blob/openchain_and_friends_2026_prep/Events/OpenChainAndFriends26/event_code_of_conduct.md"
}