ci: update workflows

Author: drupol

.github/workflows/build.yaml

@@ -22,7 +22,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@main
+      - uses: cachix/install-nix-action@v27
 
       - name: Build PHP matrix
         id: set-phps
@@ -41,6 +41,7 @@ jobs:
         phps: ${{fromJson(needs.determine-matrix.outputs.phps)}}
         archs:
           [
+            { os: ubuntu-24.04-arm, arch: aarch64-linux },
             { os: ubuntu-latest, arch: x86_64-linux },
             { os: macOS-latest, arch: x86_64-darwin },
             { os: macos-14, arch: aarch64-darwin },
@@ -51,10 +52,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@main
-
-      - name: Run the Magic Nix Cache
-        uses: DeterminateSystems/magic-nix-cache-action@main
+      - uses: cachix/install-nix-action@v27
 
       - uses: cachix/cachix-action@v15
         with:

.github/workflows/nix-fmt-checks.yaml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@main
+      - uses: cachix/install-nix-action@v27
 
       - name: Run nix formatter tool
         run: nix fmt . -- --check