[GRASS-git] [OSGeo/grass] 9def4d: CI(deps): Update actions/checkout digest to b4ffde6

[renovate[bot]]

  Branch: refs/heads/renovate/actions-checkout-digest
  Home:   https://github.com/OSGeo/grass
  Commit: 9def4def0a7113a99bed02332722bce094cf83ce
      https://github.com/OSGeo/grass/commit/9def4def0a7113a99bed02332722bce094cf83ce
  Author: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
  Date:   2023-10-22 (Sun, 22 Oct 2023)

  Changed paths:
    M .github/workflows/additional_checks.yml
    M .github/workflows/clang-format-check.yml
    M .github/workflows/codeql-analysis.yml
    M .github/workflows/create_release_draft.yml
    M .github/workflows/docker.yml
    M .github/workflows/gcc.yml
    M .github/workflows/macos.yml
    M .github/workflows/osgeo4w.yml
    M .github/workflows/pytest.yml
    M .github/workflows/python-code-quality.yml
    M .github/workflows/super-linter.yml
    M .github/workflows/ubuntu.yml

  Log Message:
  -----------
  CI(deps): Update actions/checkout digest to b4ffde6