Add Gitee v5 API as built-in tool

[JJ-H]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

Add Gitee v5 API as built-in tool, better integration of Gitee data into workflows

2. Additional context or comments

Gitee is a well-known code hosting platform in China, providing a one-stop DevOps R&D platform. We hope to gradually integrate Gitee v5 OpenAPI to help developers better orchestrate workflows.

3. Can you help us with this feature?

• [x] I am interested in contributing to this feature.

[dosubot[bot]]

Hi, @JJ-H. I'm Dosu, and I'm helping the Dify team manage their backlog. I'm marking this issue as stale.

Issue Summary:

• Request to integrate Gitee v5 API as a built-in tool.
• Emphasized Gitee's significance in China.
• Expressed willingness to contribute to development.
• No comments or activity since the issue was opened.

Next Steps:

• Please confirm if this issue is still relevant to the latest version of the Dify repository by commenting here.
• If there is no further activity, the issue will be automatically closed in 15 days.

Thank you for your understanding and contribution!