fix yml syntax again

Author: slayoo

.github/workflows/tests+artifacts+pypi.yml

@@ -22,7 +22,9 @@ jobs:
           - platform: ubuntu-latest
             python-version: "3.7"
           - platform: windows-latest
-            python-version: ["3.8", "3.10"]
+            python-version: "3.8"
+          - platform: windows-latest
+            python-version: "3.10"
     runs-on: ${{ matrix.platform }}
     steps:
       - if: matrix.platform == 'macos-latest'