### 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_
import datetime
import ipaddress
import json
import logging
import os
import re
import time
from typing import Any, Dict, List, Optional
from moto.events import events_backends
from moto.events.responses import EventsHandler as MotoEventsHandler
from werkzeug import Request
from werkzeug.exceptions import NotFound
from localstack import config
from localstack.aws.api import RequestContext
from localstack.aws.api.core import CommonServiceException, ServiceException
from localstack.aws.api.events import (
    Boolean,
    ConnectionAuthorizationType,
    ConnectionDescription,
    ConnectionName,
    CreateConnectionAuthRequestParameters,
    CreateConnectionResponse,
    EventBusNameOrArn,
    EventPattern,
    EventsApi,
    PutRuleResponse,
    PutTargetsResponse,
    RoleArn,
    RuleDescription,