[Feature Request] integrate github into CAMEL functions

[Wendong-Fan]

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Motivation

part of https://github.com/orgs/camel-ai/projects/1/views/2?pane=issue&itemId=32191111

Solution

use GitHub GraphQL API
https://docs.github.com/en/graphql

Alternatives

No response

Additional context

No response

[lightaime]

We can also look into PyGithub: https://github.com/PyGithub/PyGithub