Try building and uploading release artifacts for x86_64-linux

.github/workflows/build.yaml

@@ -0,0 +1,25 @@
+name: Build artifacts
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+jobs:
+  flake-check:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: DeterminateSystems/nix-installer-action-cache@main
+
+      - name: "Build something"
+        run: "nix develop -c cargo build --release"
+        
+      - name: Upload a Build Artifact
+        uses: actions/upload-artifact@v3.1.2
+        with:
+          # Artifact name
+          name: nix-actions-cache-x86_64-linux
+          path: target/release/nix-actions-cache
+          retention-days: 1