[GRASS-git] [OSGeo/grass] 117d0d: CI: add renovate bot (#2772)

[renovate[bot]]

  Branch: refs/heads/main
  Home:   https://github.com/OSGeo/grass
  Commit: 117d0de6b9ef85dc3d67db07180d5a5537905d6c
      https://github.com/OSGeo/grass/commit/117d0de6b9ef85dc3d67db07180d5a5537905d6c
  Author: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
  Date:   2023-01-23 (Mon, 23 Jan 2023)

  Changed paths:
    A renovate.json

  Log Message:
  -----------
  CI: add renovate bot (#2772)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

See also: https://github.com/apps/renovate