### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

Provide an URL where I can delete stored SES emails.
My motivation is to write integration tests much easier, if I could delete the stored emails from the localstack before each test case. 

I use the docker image to run localstack. Mount the `/var/lib/localstack` folder to the host and delete the files from the `tmp/state/ses` is cumbersome because of the file permission issue of docker.

I think the simplest way to achieve the empty SES emails state is to implement a new endpoint in a same way as to the GET /_localstack/ses has been implemented:

**path:** /_localstack/ses
**method:** DELETE

### 🧑‍💻 Implementation

I am not a python developer, but I think one solution is to extend the [SesServiceApiResource](https://github.com/localstack/localstack/blob/590de96b3dd65e349709300b668e70f1f9664e99/localstack/services/ses/provider.py#L121) with an `on_delete` method.

Open question for me is either delete the `/var/lib/localstack/tmp/state/ses` folder or just delete the files of the `ses` folder.
The folder does not exist when the container starts. It is created when the first email received and saved by the service.
I think both solutions have the same performance impact, so the real question is what is preferred by the maintainers.

As I mentioned I am not familiar with python ecosystem but I am happy to help implementing the feature if you accept the request.

### Anything else?

_No response_
"destination": payload.destination_addresses,
                "messageId": payload.message_id,
                "tags": tags,
            },
            "delivery": {
                "recipients": payload.destination_addresses,
                "timestamp": now.isoformat(),
            },
        }
        client = self._client_for_topic(sns_topic_arn)
        try:
            client.publish(
                TopicArn=sns_topic_arn,
                Message=json.dumps(event_payload),
                Subject="Amazon SES Email Event Notification",
            )
        except ClientError:
            LOGGER.exception("sending SNS message")
    @staticmethod
    def _client_for_topic(topic_arn: str) -> "SNSClient":
        arn_parameters = arns.parse_arn(topic_arn)
        region = arn_parameters["region"]
        access_key_id = arn_parameters["account"]
        return aws_stack.connect_to_service(
            "sns",
            region_name=region,
            aws_access_key_id=access_key_id,
            aws_secret_access_key=TEST_AWS_SECRET_ACCESS_KEY,
        )