using correct key

.github/workflows/test.yml

@@ -11,11 +11,11 @@ jobs:
         exclude:
           # just test lowest and highest python version on windows
           - os: windows-latest
-            python-version: "3.8"
+            python: "3.8"
           - os: windows-latest
-            python-version: "3.9"
+            python: "3.9"
           - os: windows-latest
-            python-version: "3.10"
+            python: "3.10"
       fail-fast: false
     runs-on: ${{ matrix.os }}
     timeout-minutes: 15