trying to lock file of another user gives http 500

## Describe the bug

trying to lock file of another user gives http 200 when it should be 403

## Steps to reproduce

Steps to reproduce the behavior:

1. As einstein try to lock file of user `admin`
```
curl -XLOCK https://localhost:9200/remote.php/dav/files/admin/space.jpg -u Einstein:relativity -k -d " "
```

## Expected behavior
status 403 with body
```

Sabre\DAV\Exception\Forbidden
Permission denied to create file (filename space.jpg)

```

## Actual behavior
status 200 with body
```

Second-604800
Infinity

opaquelocktoken:00000000-0000-0000-0000-000000000000



%
```

## Setup

Please describe how you started the server and provide a list of relevant environment variables.

```console
OCIS_VERSION=git
BRANCH=master
STORAGE_FRONTEND_UPLOAD_DISABLE_TUS=false
```

## Additional context
Add any other context about the problem here.