fix moe routing_weights (#39581)
* fix moe routing_weights
* fix ernie4_5_moe routing_weights
* fix integration test
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Co-authored-by: llbdyiu66 <llbdyiu66@users.noreply.github.com>
Co-authored-by: Vasqu <antonprogamer@gmail.com>
Co-authored-by: Anton Vlasjuk <73884904+vasqu@users.noreply.github.com>
