[Inference] Replace unordered_map with map to support subgraph stability #35147
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jiweibo
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子图检测算法是贪心的，对于遍历到的每一个节点，都会通过union find算法，找出能划分到同一个子图的其它节点；正因为贪心性质，当遍历顺序无法保证时，就无法保证检测出的子图稳定性。
unorderd_map内部可能会rehash，使得顺序无法保证，此处更换为map，保证子图稳定性。