change(test_postgresql): reduce sleep delay in replication check

tests/test_postgresql.py

@@ -348,7 +348,7 @@ def check_replication(primary: dict, standby: dict) -> bool:
     try:
         primary_psql = primary_client.cursor()
         primary_psql.execute("CREATE TABLE es_test (id serial PRIMARY KEY);")
-        time.sleep(1)
+        time.sleep(0.3)
         standby_psql = primary_client.cursor()
         standby_psql.execute("SELECT * FROM es_test;")
         primary_psql.execute("DROP TABLE es_test;")