build: fix aarch64 kits

Using advice from pypa/cibuildwheel#2257

Author: nedbat

.github/workflows/kit.yml

@@ -99,6 +99,9 @@ jobs:
           #               }
           #               if the_os == "macos":
           #                   them["os-version"] = "13"
+          #               if the_arch == "aarch64":
+          #                   # https://github.com/pypa/cibuildwheel/issues/2257
+          #                   them["os-version"] = "22.04-arm"
           #               print(f"- {json.dumps(them)}")
           # ]]]
           - {"os": "ubuntu", "py": "cp39", "arch": "x86_64"}
@@ -111,11 +114,11 @@ jobs:
           - {"os": "ubuntu", "py": "cp311", "arch": "i686"}
           - {"os": "ubuntu", "py": "cp312", "arch": "i686"}
           - {"os": "ubuntu", "py": "cp313", "arch": "i686"}
-          - {"os": "ubuntu", "py": "cp39", "arch": "aarch64"}
-          - {"os": "ubuntu", "py": "cp310", "arch": "aarch64"}
-          - {"os": "ubuntu", "py": "cp311", "arch": "aarch64"}
-          - {"os": "ubuntu", "py": "cp312", "arch": "aarch64"}
-          - {"os": "ubuntu", "py": "cp313", "arch": "aarch64"}
+          - {"os": "ubuntu", "py": "cp39", "arch": "aarch64", "os-version": "22.04-arm"}
+          - {"os": "ubuntu", "py": "cp310", "arch": "aarch64", "os-version": "22.04-arm"}
+          - {"os": "ubuntu", "py": "cp311", "arch": "aarch64", "os-version": "22.04-arm"}
+          - {"os": "ubuntu", "py": "cp312", "arch": "aarch64", "os-version": "22.04-arm"}
+          - {"os": "ubuntu", "py": "cp313", "arch": "aarch64", "os-version": "22.04-arm"}
           - {"os": "macos", "py": "cp39", "arch": "arm64", "os-version": "13"}
           - {"os": "macos", "py": "cp310", "arch": "arm64", "os-version": "13"}
           - {"os": "macos", "py": "cp311", "arch": "arm64", "os-version": "13"}
@@ -136,16 +139,10 @@ jobs:
           - {"os": "windows", "py": "cp311", "arch": "AMD64"}
           - {"os": "windows", "py": "cp312", "arch": "AMD64"}
           - {"os": "windows", "py": "cp313", "arch": "AMD64"}
-        # [[[end]]] (checksum: 38b83d67f00c838e5e7f69f803b7536c)
+        # [[[end]]] (checksum: 7c3758a4ca41df53d7ebcad68f12d0d0)
       fail-fast: false
 
     steps:
-      - name: "Setup QEMU"
-        if: matrix.os == 'ubuntu'
-        uses: docker/setup-qemu-action@4574d27a4764455b42196d70a065bc6853246a25 # v3.4.0
-        with:
-          platforms: arm64
-
       - name: "Check out the repo"
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with: