Exclude win/arm/py39

Author: michalsta

.github/workflows/run_tests.yml

@@ -17,6 +17,10 @@ jobs:
         # macos-13 is an intel runner, macos-14 is apple silicon
         os: [ubuntu-latest, ubuntu-24.04-arm, windows-latest, macos-13, macos-latest, windows-11-arm]
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        exclude:
+        - os: windows-11-arm
+          python-version: "3.9"
+
 
     steps:
       - uses: actions/checkout@v5