Add Nullcon Berlin for security, cpp, devops

[confs-tech-bot]

Conference information

Website: https://nullcon.net/event/nullcon-berlin-2026
CFP: https://nullcon.net/event/nullcon-berlin-2026/cfp

Twitter: https://twitter.com/@nullcon

// security, cpp, devops

{
  "name": "Nullcon Berlin",
  "url": "https://nullcon.net/event/nullcon-berlin-2026",
  "startDate": "2026-11-02",
  "endDate": "2026-11-06",
  "city": "Berlin",
  "country": "Germany",
  "online": false,
  "locales": "EN",
  "cocUrl": "https://nullcon.net/event/nullcon-berlin-2026/registration/",
  "cfpUrl": "https://nullcon.net/event/nullcon-berlin-2026/cfp",
  "cfpEndDate": "2026-07-10",
  "twitter": "@nullcon"
}