Build the aarch64 wheels on new aarch64 linux runners

.github/workflows/build.yml

@@ -39,7 +39,7 @@ jobs:
         include:
           - os: ubuntu-latest
             cibw_archs: "x86_64"
-          - os: ubuntu-latest
+          - os: ubuntu-24.04-arm
             cibw_archs: "aarch64"
           - os: windows-2022
             cibw_archs: "auto64"
@@ -54,13 +54,6 @@ jobs:
       with:
         submodules: 'recursive'
 
-      # This might not be necessary once ARM runners become available for general use
-    - name: Set up QEMU
-      if: matrix.cibw_archs == 'aarch64'
-      uses: docker/setup-qemu-action@v3
-      with:
-        platforms: arm64
-
     - name: Add msbuild to PATH
       uses: microsoft/setup-msbuild@v2
       if: startsWith(matrix.os,'windows')