feat: migrate to using native arm runners for wheel builds (#366)

.github/workflows/ci.yml

@@ -131,24 +131,14 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest]
+        os: [ubuntu-24.04-arm, ubuntu-latest]
         musl: ["", "musllinux"]
-        arch:
-          - "x86_64"
-          - "aarch64"
-
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
           ref: "main"
 
-      - name: Set up QEMU
-        if: matrix.arch == 'aarch64'
-        uses: docker/setup-qemu-action@v3
-        with:
-          platforms: arm64
-
       # Used to host cibuildwheel
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -170,27 +160,15 @@ jobs:
       - name: Install cibuildwheel
         run: python -m pip install cibuildwheel==2.22.0
 
-      - name: Build wheels (manylinux)
+      - name: Build wheels
         run: python -m cibuildwheel --output-dir wheelhouse
-        if: matrix.musl == ''
         # to supply options, put them in 'env', like:
         env:
-          CIBW_SKIP: "*p36-* *p37-* *p38-* *musllinux*"
+          CIBW_SKIP: "*p36-* *p37-* *p38-* ${{ matrix.musl == 'musllinux' && '*manylinux*' || '*musllinux*' }}"
           CIBW_BEFORE_ALL_LINUX: apt-get install -y gcc || yum install -y gcc || apk add gcc
           CIBW_BUILD_VERBOSITY: 3
           REQUIRE_CYTHON: 1
-          CIBW_ARCHS: ${{ matrix.arch }}
-
-      - name: Build wheels (musl)
-        run: python -m cibuildwheel --output-dir wheelhouse
-        if: matrix.musl == 'musllinux'
-        # to supply options, put them in 'env', like:
-        env:
-          CIBW_SKIP: "*p36-* *p37-* *p38-* *manylinux*"
-          CIBW_BEFORE_ALL_LINUX: apt-get install -y gcc || yum install -y gcc || apk add gcc
-          CIBW_BUILD_VERBOSITY: 3
-          REQUIRE_CYTHON: 1
-          CIBW_ARCHS: ${{ matrix.arch }}
+          CIBW_ARCHS_LINUX: ${{ matrix.os == 'ubuntu-24.04-arm' && 'aarch64' || 'auto' }}
 
       - uses: actions/upload-artifact@v3
         with: