Fix hybrid dynamic inference functional tests

[santhnm2]

What does this PR do ?

Fixes the hybrid dynamic inference functional tests.

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[santhnm2]

/ok to test 0d294e4

[svcnvidia-nemo-ci]

🔄 Merge queue validation started!

You can track the progress here: https://github.com/NVIDIA/Megatron-LM/actions/runs/23256791610