### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

I am running an SNS topic that publishes to a lambda function. The localstack code reads a type byte object from the lambda function invocation payload [here](https://github.com/localstack/localstack/blob/master/localstack/services/sns/publisher.py#L187) and then tries to dump the result into json [here](https://github.com/localstack/localstack/blob/master/localstack/services/sns/publisher.py#L863) which results in the following error:
```
sns_pub_0] l.services.sns.publisher   : Unable to run Lambda function on SNS message: Object of type bytes is not JSON serializable
```

### Expected Behavior

The payload bytes should be converted to a string before being dumped to json. The error should not be thrown.

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

docker-compose up
(Using the standard docker-compose.yaml)

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

```
awslocal sns publish --message file://sns/message.json --topic-arn arn:aws:sns:us-east-1:000000000000:<topic_name>
```

### Environment

```markdown
- OS: macOS Ventura 13.2.1
- LocalStack: latest
```


### Anything else?

_No response_
for condition in conditions:
            if self._evaluate_condition(value, condition, field_exists):
                return True
        return False
    def _evaluate_condition(self, value, condition, field_exists: bool):
        if not isinstance(condition, dict):
            return value == condition
        elif (must_exist := condition.get("exists")) is not None:
            
            
            return must_exist == field_exists
        elif value is None:
            
            return False
        elif anything_but := condition.get("anything-but"):
            return value not in anything_but
        elif prefix := (condition.get("prefix")):
            return value.startswith(prefix)
        elif numeric_condition := condition.get("numeric"):
            return self._evaluate_numeric_condition(numeric_condition, value)
        return False
    @staticmethod
    def _evaluate_numeric_condition(conditions, value):