CI: update npins daily

.github/workflows/update-pkgs.yml

@@ -0,0 +1,34 @@
+name: Update packages
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *" # daily
+
+jobs:
+  update:
+    if: github.repository == 'notashelf/nyxpkgs'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: DeterminateSystems/nix-installer-action@main
+
+      - uses: cachix/cachix-action@v12
+        with:
+          name: nyx
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
+
+      - name: Update npins
+        run: nix run nixpkgs#npins update
+
+      - uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          commit_message: "Update packages"
+          push_options: "--force"
+
+  build:
+    needs: update
+    uses: ./.github/workflows/build.yml
+    secrets: inherit