Fixed #30636 -- Fixed options ordering when cloning test database on MySQL.

[fallen]

No description provided.

[felixxm]

@fallen Thanks for this patch 👍 Can you add test to the backends/mysql/test_creation.py? It can be tricky, e.g.

def test_clone_test_db_options_ordering(self):
    creation = DatabaseCreation(connection)
    try:
        saved_settings = connection.settings_dict
        connection.settings_dict = {
            ...
        }
        with mock.patch.object(subprocess, 'Popen') as mocked_popen:
            creation._clone_db('source_db', 'target_db')
            mocked_popen.assert_has_calls([
                mock.call(
                    ['mysqldump', '--defaults-file=my.cnf', '--routines', '--events', 'source_db'],
                    stdout=subprocess.PIPE,
                ),
            ])
    finally:
       connection.settings_dict = saved_settings

[fallen]

For the test, I would need time to write it as I am not used to Mock stuff at all, and this use-case seems rather advanced.
If you want to write the test yourself please feel free to do it.
If not, I'll do it but it will take a bit of time :)

[felixxm]

@fallen I've provided test in comment. I can add it to this patch, np.

[felixxm]

@fallen Thanks! I added test.

[fallen]

Thanks a lot!