renovate.json

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:recommended",
    ":semanticCommits",
    ":semanticCommitTypeAll(chore)"
  ],
  "labels": [
    "dependencies"
  ],
  "enabledManagers": [
    "github-actions",
    "custom.regex"
  ],
  "customManagers": [
    {
      "customType": "regex",
      "fileMatch": [
        "^GO_VERSION$"
      ],
      "depTypeTemplate": "language",
      "matchStrings": [
        "^(?<currentValue>[0-9.]+)"
      ],
      "extractVersionTemplate": "^(?<version>.+)-bookworm$",
      "depNameTemplate": "docker.io/library/golang",
      "autoReplaceStringTemplate": "{{{newValue}}}",
      "datasourceTemplate": "docker",
      "versioningTemplate": "docker"
    }
  ],
  "packageRules": [
    {
      "matchDepNames": [
        "docker.io/library/golang"
      ],
      "groupName": "Update Go version",
      "groupSlug": "bump-go",
      "automerge": true
    }
  ]
}