[Doc][zh-CN] Add Jira connector Chinese documentation

[RongHaa]

Purpose of this pull request

Does this PR introduce any user-facing change?

How was this patch tested?

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config
• Update the release-note.

[Copilot]

Pull Request Overview

This pull request adds Chinese documentation for the Jira connector.

• Introduces a new markdown file in docs/zh/connector-v2/source for the Jira connector.
• Provides Chinese descriptions of usage, options, and examples for configuring the connector.

Comments suppressed due to low confidence (1)

docs/zh/connector-v2/source/Jira.md:143

• The parameter name 'content_json' in the options table and header is inconsistent with the example usage ('content_field'). Consider using a consistent parameter name throughout the documentation.

### content_json [String]

[Hisoka-X]

Hi @RongHaa , please follow the guide to open github action on your fork repository. https://github.com/apache/seatunnel/pull/8730/checks?check_run_id=37219576667

[RongHaa]

Hi @RongHaa , please follow the guide to open github action on your fork repository. https://github.com/apache/seatunnel/pull/8730/checks?check_run_id=37219576667

Thank you!|ू･ω･` )，I have made the revisions. Your further corrections are sincerely appreciated.

[RongHaa]

Thank you all for your suggestions. I have made the corrections.Please approve.ヾ(◍°∇°◍)ﾉﾞ