[openssl/openssl] 4ff3a4: Bump actions/checkout from 2 to 4

[dependabot[bot]]

  Branch: refs/heads/dependabot/github_actions/actions/checkout-4
  Home:   https://github.com/openssl/openssl
  Commit: 4ff3a48640add48cc631eea5376ceabd1940c619
      https://github.com/openssl/openssl/commit/4ff3a48640add48cc631eea5376ceabd1940c619
  Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
  Date:   2023-09-05 (Tue, 05 Sep 2023)

  Changed paths:
    M .github/workflows/ci.yml
    M .github/workflows/compiler-zoo.yml
    M .github/workflows/coveralls.yml
    M .github/workflows/cross-compiles.yml
    M .github/workflows/fips-checksums.yml
    M .github/workflows/fuzz-checker.yml
    M .github/workflows/os-zoo.yml
    M .github/workflows/provider-compatibility.yml
    M .github/workflows/run-checker-ci.yml
    M .github/workflows/run-checker-daily-sctp.yml
    M .github/workflows/run-checker-daily.yml
    M .github/workflows/run-checker-merge.yml
    M .github/workflows/static-analysis.yml
    M .github/workflows/windows.yml
    M .github/workflows/windows_comp.yml

  Log Message:
  -----------
  Bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support at github.com>