### 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_
RuleName,
    RuleState,
    ScheduleExpression,
    String,
    TagList,
    TargetList,
    TestEventPatternResponse,
)
from localstack.constants import APPLICATION_AMZ_JSON_1_1
from localstack.http import route
from localstack.services.edge import ROUTER
from localstack.services.events.models import EventsStore, events_stores
from localstack.services.events.scheduler import JobScheduler
from localstack.services.moto import call_moto
from localstack.services.plugins import ServiceLifecycleHook
from localstack.utils.aws.arns import event_bus_arn, parse_arn
from localstack.utils.aws.client_types import ServicePrincipal
from localstack.utils.aws.message_forwarding import send_event_to_target
from localstack.utils.collections import pick_attributes
from localstack.utils.common import TMP_FILES, mkdir, save_file, truncate
from localstack.utils.json import extract_jsonpath
from localstack.utils.strings import long_uid, short_uid
from localstack.utils.time import TIMESTAMP_FORMAT_TZ, timestamp
LOG = logging.getLogger(__name__)
TEST_EVENTS_CACHE = []
EVENTS_TMP_DIR = "cw_events"
DEFAULT_EVENT_BUS_NAME = "default"
CONTENT_BASE_FILTER_KEYWORDS = ["prefix", "anything-but", "numeric", "cidr", "exists"]
CONNECTION_NAME_PATTERN = re.compile("^[\\.\\-_A-Za-z0-9]+$")
class ValidationException(ServiceException):