Update DeterminateSystems/magic-nix-cache-action action to v7

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
DeterminateSystems/magic-nix-cache-action	action	major	v6 -> v7

---

Release Notes

DeterminateSystems/magic-nix-cache-action (DeterminateSystems/magic-nix-cache-action)

### [`v7`](https://togithub.com/DeterminateSystems/magic-nix-cache-action/releases/tag/v7) [Compare Source](https://togithub.com/DeterminateSystems/magic-nix-cache-action/compare/v6...v7) #### What's Changed - Behave well when MNCA isn't trusted by [@​grahamc](https://togithub.com/grahamc) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/52](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/52) - Bring back store diffing (optionally) by [@​cole-h](https://togithub.com/cole-h) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/54](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/54) - Add strict mode by [@​lucperkins](https://togithub.com/lucperkins) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/53](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/53) - Make the source-binary setting optional by [@​lucperkins](https://togithub.com/lucperkins) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/55](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/55) - Make strict mode input not required by [@​lucperkins](https://togithub.com/lucperkins) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/56](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/56) - Update detsys-ts by [@​lucperkins](https://togithub.com/lucperkins) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/59](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/59) - Add store diff fact by [@​lucperkins](https://togithub.com/lucperkins) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/58](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/58) - srv update by [@​grahamc](https://togithub.com/grahamc) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/60](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/60) - Update detsys-ts (status page changes) by [@​lucperkins](https://togithub.com/lucperkins) in [https://github.com/DeterminateSystems/magic-nix-cache-action/pull/61](https://togithub.com/DeterminateSystems/magic-nix-cache-action/pull/61) **Full Changelog**: https://github.com/DeterminateSystems/magic-nix-cache-action/compare/v6...v7

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.