Telegram load sample data

[abuaboud]

This currently fetches static sample data from this link.

We need to modify this function to return the five most recent messages. Please ensure that the format remains the same as the sample data.

We can't use webhook simulation because we can only register one link, and the simulation link will override the real one. Therefore, let's implement a test function to fetch the most recent messages.

[github-actions]

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