ci: add nightly build for macos aarch64

.github/workflows/build.yml

@@ -40,3 +40,36 @@ jobs:
           allowUpdates: true
           artifacts: lightpanda-get-${{ env.ARCH }}-${{ env.OS }}
           tag: nightly
+
+  build-macos-aarch64:
+    env:
+      ARCH: aarch64
+      OS: macos
+
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.GH_CI_PAT }}
+          # fetch submodules recusively, to get zig-js-runtime submodules also.
+          submodules: recursive
+
+      - uses: ./.github/actions/install
+        with:
+          os: ${{env.OS}}
+          arch: ${{env.ARCH}}
+
+      - name: zig build
+        run: zig build --release=safe -Doptimize=ReleaseSafe -Dengine=v8
+
+      - name: Rename binary
+        run: mv zig-out/bin/browsercore-get lightpanda-get-${{ env.ARCH }}-${{ env.OS }}
+
+      - name: Upload the build
+        uses: ncipollo/release-action@v1
+        with:
+          allowUpdates: true
+          artifacts: lightpanda-get-${{ env.ARCH }}-${{ env.OS }}
+          tag: nightly