feature: support for batch creating task through http_sd

[Calvin979]

What's changed?

Steps to batch create task through http_sd

1. Add http_sd params in template yml

  - field: http_sd
    name:
      zh-CN: http_sd
      en-US: http_sd
    type: text
    placeholder: Enter http_sd url
    required: false
    hide: true

2. Enter http_sd url when trying to create task(optional)

Checklist

• [x] I have read the Contributing Guide
• [ ] I have written the necessary doc or comment.
• [ ] I have added the necessary unit tests and all cases have passed.

Add or update API

• [ ] I have added the necessary e2e tests and all cases have passed.