Update DeterminateSystems/magic-nix-cache-action action to v15

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
DeterminateSystems/magic-nix-cache-action	action	major	v14 → v15

---

Release Notes

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

v15

Compare Source

What's Changed

• Apply pinning to GitHub Actions by @​lucperkins in #​197
• Update deps by @​cole-h in #​200
• Add source-checksums-url, source-checksums-sha256 inputs by @​cole-h in #​201
• Update detsys-ts: Merge pull request #​196 from DeterminateSystems/undici by @​detsys-pr-bot in #​204
• Update detsys-ts: Merge pull request #​206 from DeterminateSystems/deps/dependabot-sweep by @​detsys-pr-bot in #​212
• Depend on detsys-ts from npm by @​grahamc in #​215
• Update npm dependencies, fix esbuild advisory, and update flake inputs by @​lucperkins in #​217
• Grahamc/otel by @​grahamc in #​213
• Drop x86_64-darwin by @​grahamc in #​220
• Update detsys-ts to v2.1.1 by @​detsys-pr-bot in #​219
• Update detsys-ts to v2.1.2 by @​detsys-pr-bot in #​221
• Update detsys-ts to v2.1.3 by @​detsys-pr-bot in #​222

Full Changelog: DeterminateSystems/magic-nix-cache-action@v14...v15

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, 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 was generated by Mend Renovate. View the repository job log.