core/.github/workflows/matchers/hadolint.json

{
  "problemMatcher": [
    {
      "owner": "hadolint",
      "pattern": [
        {
          "regexp": "^(.+):(\\d+)\\s+((DL\\d{4}).+)$",
          "file": 1,
          "line": 2,
          "message": 3,
          "code": 4
        }
      ]
    }
  ]
}