Try updating postgres instead

Author: xow

.github/workflows/moodle-ci.yml

@@ -8,7 +8,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:13
+        image: postgres:14
         env:
           POSTGRES_USER: "postgres"
           POSTGRES_HOST_AUTH_METHOD: "trust"
@@ -31,7 +31,7 @@ jobs:
           - php: 8.3
             moodle-branch: MOODLE_500_STABLE
             database: pgsql
-            plugin-ci: 5
+            plugin-ci: 4
           - php: 8.3
             moodle-branch: MOODLE_405_STABLE
             database: pgsql