Reduce jobs for faster turn-around

Author: sximba

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         django-version: ["4.2", "5.1", "5.2"]
         es-version: ["7.17.28", "8.18.2", "9.0.2"]
-        version: ["7.4", "8.0", "master"]
+        version: ["master"]
 
         exclude:
           - python-version: "3.13"