[chore] Re-generate PAT by 12/03/2026

[vpchung]

Annual chore of regenerating the github token for the mc2center-bot account. The new tokens are set to expire on 12/03/2026.

TODO:

• Regenerate tokens
  • data-models
  • RFC-Integration
  • project-tracking
• Update GH_TOKEN secret
  • data-models token to data-models repo
  • project-tracking token to mc2-center-dcc repo
• Update RFC_TOKEN secret in data-models repo