github: use matrix for parallel builds

Building everything at once takes hours and causes CI to run out of
disk space, so we need to build in parallel.

.github/workflows/publish.yaml

@@ -11,12 +11,29 @@ jobs:
   build_wheels:
     name: Build wheels
     runs-on: windows-2022
-
+    strategy:
+      matrix:
+        build:
+        - cp37-win_amd64
+        - cp37-win32
+        - cp38-win_amd64
+        - cp38-win32
+        - cp39-win_amd64
+        - cp39-win32
+        - cp39-win_arm64
+        - cp310-win_amd64
+        - cp310-win32
+        - cp310-win_arm64
+        - cp311-win_amd64
+        - cp311-win32
+        - cp311-win_arm64
     steps:
       - uses: actions/checkout@v3
 
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.12.1
+        env:
+          CIBW_BUILD: ${{ matrix.build }}
 
       - uses: actions/upload-artifact@v3
         with: