Redis [BUG] memory leak in streamGetEdgeID

Describe the bug

Hi, I found a possible memory leak in streamGetEdgeID with static analysis.

si is initialized by streamIteratorStart(), the code doesn't streamIteratorStop() on it when things done. it's a memory leak. https://github.com/redis/redis/blob/60250f50c2f308d301fb0bfcb6d07faa2560ce60/src/t_stream.c#L393-L405

According to the doc of streamIteratorStart(), we need to call streamIteratorStop() when things done. https://github.com/redis/redis/blob/60250f50c2f308d301fb0bfcb6d07faa2560ce60/src/t_stream.c#L1037-L1058

Thanks for your further confirmation.

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Comment From: sundb

@Yuuoniy Thx, you are right. Can you make a PR to fix it?

Comment From: Yuuoniy

@sundb Sure, I will send a PR later.