chore(deps): bump DeterminateSystems/magic-nix-cache-action from 2 to 3

Bumps [DeterminateSystems/magic-nix-cache-action](https://github.com/determinatesystems/magic-nix-cache-action) from 2 to 3.
- [Release notes](https://github.com/determinatesystems/magic-nix-cache-action/releases)
- [Commits](DeterminateSystems/magic-nix-cache-action@v2...v3)

---
updated-dependencies:
- dependency-name: DeterminateSystems/magic-nix-cache-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build.yaml

@@ -10,15 +10,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v25
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
+      - uses: DeterminateSystems/magic-nix-cache-action@v3
       - name: Check flake
         run: nix flake check
   format:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v25
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
+      - uses: DeterminateSystems/magic-nix-cache-action@v3
       - name: Check format
         run: |
           nix fmt
@@ -28,7 +28,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v25
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
+      - uses: DeterminateSystems/magic-nix-cache-action@v3
       - name: Build Home Manager configuration
         run: |
           nix-env -q # TODO: Remove. https://github.com/nix-community/home-manager/pull/3872
@@ -38,14 +38,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v25
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
+      - uses: DeterminateSystems/magic-nix-cache-action@v3
       - name: Build NixOS configuration
         run: nix run '.#os' -- build -L --flake '.#ci' --print-build-logs
   nix-darwin-amd64:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v25
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
+      - uses: DeterminateSystems/magic-nix-cache-action@v3
       - name: Build nix-darwin configuration
         run: nix run '.#os' -- build -L --flake '.#ci-amd64' --print-build-logs