Remove Python 3.7 from CI/CD

Author: Ickerday

.github/workflows/test.yml

@@ -11,12 +11,6 @@ jobs:
         python-version: [3.9]
         splunk-version: [9.4, latest]
         include:
-          # Oldest possible configuration
-          # Last Ubuntu version with Python 3.7 binaries available
-          - os: ubuntu-22.04
-            python-version: 3.7
-            splunk-version: 9.1
-          # Latest possible configuration
           - os: ubuntu-latest
             python-version: 3.13
             splunk-version: latest