ci: add arm64 build

Author: krichprollsch

.github/workflows/build-release.yml

@@ -83,3 +83,38 @@ jobs:
         with:
           allowUpdates: true
           artifacts: libc_v8_${{steps.read-version.outputs.version}}_${{ env.OS }}_${{ env.ARCH }}.a
+
+  build-arm64-linux:
+    env:
+      OS: linux
+      ARCH: aarch64
+
+    runs-on: ubuntu-22.04-arm
+    steps:
+      - uses: mlugg/setup-zig@v1
+        with:
+          version: ${{ env.ZIG_VERSION }}
+
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: Read version
+        id: read-version
+        run: |
+          echo "version=`cat V8_REVISION`" >> "$GITHUB_OUTPUT"
+
+      - run: sudo apt-get install -yq libglib2.0-dev
+
+      - run: zig build get-tools
+      - run: zig build get-v8
+      - run: zig build -Doptimize=ReleaseSafe
+      - run: mv v8-build/${{ env.ARCH }}-${{ env.OS }}/release/ninja/obj/zig/libc_v8.a libc_v8_${{steps.read-version.outputs.version}}_${{ env.OS }}_${{ env.ARCH }}.a
+
+      - name: Upload the build
+        uses: ncipollo/release-action@v1
+        with:
+          allowUpdates: true
+          artifacts: libc_v8_${{steps.read-version.outputs.version}}_${{ env.OS }}_${{ env.ARCH }}.a
+