Update python-tests.yml

Author: mircealungu

.github/workflows/python-tests.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version:  ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version:  ['3.10', '3.11', '3.12', '3.13']
 
     steps:
     - uses: actions/checkout@v2