ftpwriter下plugin_job_template.json参数修复

修复ftpwriter下plugin_job_template.json模版
{
"name": "ftpwriter",
"parameter": {
"protocol": "",
"host": "",
"port": "",
"username": "",
"password": "",
"timeout": "",
"connectPattern": "",
"path": "",
"fileName": "",
"writeMode": "",
"fieldDelimiter": "",
"encoding": "",
"nullFormat": "",
"dateFormat": "",
"fileFormat": "",
"header": []
}
}

Inspect ftpwriter/plugin_job_template.json and compare the listed template parameters with the ftpwriter plugin's expected configuration. Identify which entries are incorrect, update the template, and verify the resulting JSON against the plugin's configuration or validation checks if available.

Written by the indexing model from the issue text.