core/.github/workflows/matchers/yamllint.json

{
  "problemMatcher": [
    {
      "owner": "yamllint",
      "pattern": [
        {
          "regexp": "^(.*\\.ya?ml)$",
          "file": 1
        },
        {
          "regexp": "^\\s{2}(\\d+):(\\d+)\\s+(error|warning)\\s+(.*?)\\s+\\((.*)\\)$",
          "line": 1,
          "column": 2,
          "severity": 3,
          "message": 4,
          "code": 5,
          "loop": true
        }
      ]
    }
  ]
}