Bump suisei-cn/actions-download-file from 1.4.0 to 1.6.0

Bump suisei-cn/actions-download-file from 1.4.0 to 1.6.0

Bumps [suisei-cn/actions-download-file](https://github.com/suisei-cn/actions-download-file) from 1.4.0 to 1.6.0.
- [Release notes](https://github.com/suisei-cn/actions-download-file/releases)
- [Commits](https://github.com/suisei-cn/actions-download-file/compare/v1.4.0...v1.6.0)

---
updated-dependencies:
- dependency-name: suisei-cn/actions-download-file
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
CLA: trivial

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23425)