CI: add test for x86 Windows

Author: mgeier

.github/workflows/sounddevice-data.yml

@@ -4,13 +4,20 @@ jobs:
   binaries:
     strategy:
       matrix:
-        os: [macos-latest, windows-latest]
+        include:
+          - os: macos-latest
+            arch: 'x64'
+          - os: windows-latest
+            arch: 'x64'
+          - os: windows-latest
+            arch: 'x86'
     runs-on: ${{ matrix.os }}
     steps:
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
+          architecture: ${{ matrix.arch }}
       - name: Double-check Python version
         run: |
           python --version