[receiver/githubreceiver] Add Audit Logs

[justinianvoss22]

Description:
Implementation for GitHub's logs for enterprise, organization, and user events.

The GitHub Receiver supports GitHub audit logs for both Enterprise and Organization entities. GitHub provides comprehensive audit logs, which include detailed information about various events, such as repository changes, user activities, security settings, and access management. While GitHub does not provide dedicated audit logs for individual User accounts, events related to user activities can still be captured through existing log types (like repository, actions, and security events). This ensures that all log types - enterprise, organization, and user, are available for analysis.

Link to tracking Issue:
#35015

Testing:
Unit testing for config.go, factory.go, and logs.go

Documentation:
README.md, CHANGELOG.md show and explain changes.

[linux-foundation-easycla]

• ❌ - login: @justinianvoss22 / name: Justin Voss . The commit (6b4e7a2, c006877, 44aee93) is not authorized under a signed CLA. Please click here to be authorized. For further assistance with EasyCLA, please submit a support request ticket.