Remove 3.9 from test scope due of EOL

Author: gonchik

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13', '3.14' ]
+        python-version: [ '3.10', '3.11', '3.12', '3.13', '3.14' ]
 
     steps:
       - uses: actions/checkout@v6