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Feature Request

This issue is a subtask of #4825.

Referencing the existing eventmesh-webhook module and its documentation, support the following functionalities:

• Utilize the HTTP Source Connector as a Webhook server, capable of receiving event deliveries from most third-party platforms using a common Webhook protocol, such as UptimeRobot/Better Stack Uptime, Discord, and more.
• Support the GitHub Webhook protocol, allowing users to implement non-standard Webhook protocols for specific third-party platforms on their own (for example, refer to org.apache.eventmesh.webhook.receive.protocol.GithubProtocol. Another third-party platform can be supported by implementing the AnotherProtocol class).

"1+n" protocol support: 1 for a common standard Webhook protocol, and n for special non-standard Webhook protocols. Users need to select a protocol in the source-config.yml.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

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