ci: Temporarily enable PostgresDriver only

Author: uki00a

ormconfig.gh-actions.json

@@ -1,13 +1,13 @@
 [
   {
-    "skip": false,
+    "skip": true,
     "name": "sqlite",
     "type": "sqlite",
     "database": "temp/sqlite.db",
     "logging": false
   },
   {
-    "skip": true,
+    "skip": false,
     "name": "postgres",
     "type": "postgres",
     "host": "localhost",
@@ -18,7 +18,7 @@
     "logging": false
   },
   {
-    "skip": false,
+    "skip": true,
     "name": "mysql",
     "type": "mysql",
     "host": "127.0.0.1",