Fix wheel build

Author: benjeffery

.github/workflows/wheels.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Set up Python 3.10
         uses: actions/setup-python@v2
         with:
-          python-version: 3.10
+          python-version: "3.10"
 
       - name: Build sdist
         shell: bash