fix: nix flake build freezes in github action, so try magic nix cache

.github/workflows/build-artifacts.yml

@@ -10,7 +10,7 @@ on:
     paths-ignore: [ "*.md" ]
 
 jobs:
-  Build-VSIX:
+  Compile-All:
     runs-on: macos-12
     steps:
       - uses: actions/checkout@v4
@@ -23,6 +23,8 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-vagrant-
 
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+
       - name: Show Vagrant version
         run: vagrant --version