feat(build): add cross-compilation support for Linux ARM64

This commit adds proper cross-compilation support for Linux ARM64:

- Add QEMU emulation for ARM64 builds
- Configure Rust cross-compilation toolchains
- Add architecture-specific Rust targets
- Keep x86_64 builds unchanged for compatibility

These changes enable proper cross-compilation of wheels for both x86_64
and aarch64 architectures on Linux using QEMU emulation where needed.
The build process now properly handles architecture-specific toolchains
and containers while maintaining manylinux2014 compatibility.

.github/workflows/python-publish.yml

@@ -80,11 +80,22 @@ jobs:
           - target: x86_64
             container: quay.io/pypa/manylinux2014_x86_64
             platform-tag: manylinux2014_x86_64
+            rust-target: x86_64-unknown-linux-gnu
           - target: aarch64
             container: quay.io/pypa/manylinux2014_aarch64
             platform-tag: manylinux2014_aarch64
+            rust-target: aarch64-unknown-linux-gnu
     steps:
       - uses: actions/checkout@v4
+      - name: Set up QEMU
+        if: matrix.target == 'aarch64'
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.rust-target }}
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}