Issue #, if available:
In UDP Exporter, when sending via the socket, our callback method will rethrow the error if there an error from the send. However, this is done asynchronously, so it isn't actually caught in the surrounding try/catch.

This err can happen when the UDP Packet size limit is reached. When this error is thrown, it can cause the following error in Lambda:

[ERROR] [1761253646458] LAMBDA_RUNTIME Failed to post handler success response. Http response code: 403. 
{
    "errorMessage": "State transition from RuntimeResponseSentState to InvocationErrorResponse failed for runtime. Error: State transition is not allowed",
    "errorType": "InvalidStateTransition"
}

Description of changes:

• reject error, as opposed to throwing error because it cannot be caught in the existing surrounding try/catch.

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