remove deprecated python version

Author: szymonjas

.github/workflows/python-test.yml

@@ -13,7 +13,7 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-        python: [ 3.7, 3.9, 3.13 ]
+        python: [3.9, 3.13 ]
         splunk-version:
           - "8.0"
           - "latest"