Dependabot does support pinned hashes, even adds the comment after them with the tag. Dependabot fatigue is a thing though, and blindly mashing "merge" doesn't

Dependabot does support pinned hashes, even adds the comment after them with the tag. Dependabot fatigue is a thing though, and blindly mashing "merge" doesn't do much for your security, but at least there's some delay between a compromise and your workflow being updated to include it.