### 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_
code: str = "ValidationException"
    sender_fault: bool = True
    status_code: int = 400
class EventsProvider(EventsApi, ServiceLifecycleHook):
    def __init__(self):
        apply_patches()
    def on_after_init(self):
        ROUTER.add(self.trigger_scheduled_rule)
    def on_before_start(self):
        JobScheduler.start()
    def on_before_stop(self):
        JobScheduler.shutdown()
    @route("/_aws/events/rules/<path:rule_arn>/trigger")
    def trigger_scheduled_rule(self, request: Request, rule_arn: str):
        """Developer endpoint to trigger a scheduled rule."""
        arn_data = parse_arn(rule_arn)
        account_id = arn_data["account"]
        region = arn_data["region"]
        rule_name = arn_data["resource"].split("/", maxsplit=1)[-1]
        job_id = events_stores[account_id][region].rule_scheduled_jobs.get(rule_name)
        if not job_id:
            raise NotFound()
        job = JobScheduler().instance().get_job(job_id)
        if not job:
            raise NotFound()
        
        
        job.run()
    @staticmethod
    def get_store(context: RequestContext) -> EventsStore: