Apply suggestion from @Copilot

Co-authored-by: Copilot <[email protected]>

Author: nezhar

.github/workflows/test-postgres.yml

@@ -32,7 +32,7 @@ jobs:
           - "5.1"
           - "5.2"
         drf-version:
-          - "3.15"
+          - "3.16"
 
     steps:
     - uses: actions/checkout@v4