It's postgresql not postgres ding dong.

Author: tim-schilling

.github/workflows/test.yml

@@ -82,7 +82,7 @@ jobs:
       max-parallel: 5
       matrix:
         python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
-        database: [postgres, postgis]
+        database: [postgresql, postgis]
 
     services:
       postgres: