### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

The provided example does not put a message in SQS.

### Expected Behavior

The provided example puts a message in SQS.

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

The following scripts returns no items in SQS, but it should. The bit detail: foo is not matched.

```
awslocal events create-event-bus \
    --name detail-bus-1

awslocal sqs create-queue \
    --queue-name "detail-sqs-1"

awslocal events put-rule \
    --name "detail-rule-1" \
    --event-bus-name "detail-bus-1" \
    --event-pattern '{ "detail": { "foo": [ { "exists": true } ] } }'

awslocal events put-targets \
    --rule "detail-rule-1" \
    --event-bus-name "detail-bus-1" \
    --targets "Id"="detail-target-rule-1","Arn"="arn:aws:sqs:us-east-1:000000000000:detail-sqs-1","InputPath"="$.detail"

awslocal events put-events --entries '[{"DetailType": "test", "Source": "aws.test", "Detail": "{ \"foo\": \"bar\" }", "EventBusName": "detail-bus-1"}]'
awslocal sqs receive-message --queue-url http://localhost:4566/000000000000/detail-sqs-1
```

### Environment

```markdown
- OS: macOS 13.3.1
- LocalStack: 1.4.0
```


### Anything else?

_No response_
queue_name = f"queue-{short_uid()}"
        rule_name = f"rule-{short_uid()}"
        target_id = f"target-{short_uid()}"
        queue_url = aws_client.sqs.create_queue(QueueName=queue_name)["QueueUrl"]
        queue_arn = arns.sqs_queue_arn(queue_name, TEST_AWS_ACCOUNT_ID, TEST_AWS_REGION_NAME)
        pattern = {
            "Source": [{"exists": True}],
            "detail-type": [{"prefix": "core.app"}],
            "Detail": {
                "decription": ["this-is-event-details"],
                "amount": [200],
                "salary": [2000, 4000],
                "env": ["dev", "prod"],
                "user": ["user1", "user2", "user3"],
                "admins": ["skyli", {"prefix": "hey"}, {"prefix": "ad"}],
                "test1": [{"anything-but": 200}],
                "test2": [{"anything-but": "test2"}],
                "test3": [{"anything-but": ["test3", "test33"]}],
                "test4": [{"anything-but": {"prefix": "test4"}}],
                "ip": [{"cidr": "10.102.1.0/24"}],
                "num-test1": [{"numeric": ["<", 200]}],
                "num-test2": [{"numeric": ["<=", 200]}],
                "num-test3": [{"numeric": [">", 200]}],
                "num-test4": [{"numeric": [">=", 200]}],
                "num-test5": [{"numeric": [">=", 200, "<=", 500]}],