malloc error on initialization of inverse normalizer

[hannan72]

In the initialization of inverse normalizer for English language, sometimes the code crashed with the following error at the initialization:
malloc(): unaligned tcache chunk detected
I traced the code and found this occasional error occured in the importing some modules from pynini package in nemo_text_processing/text_normalization/en/graph_utils.py lines 23 to 25:

I fixed this issue by updating pynini to version 2.1.6, however its version in requirements file is explicitly set to 2.1.5 and this version seems to be reason of such crash.

I think the pynini version in requirements/requirements.txt file should be updated to 2.1.6

• OS: Ubuntu 22.04
• HW: CPU
• python 3.10

[github-actions]

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