bugfix: pin nemo-text-process to fix Chinese normalizer error.

[XuesongYang]

What does this PR do ?

Related to bug report,

Chinese normalizer outputted wrong normalized text for the input, '双辽境内除东辽河、西辽河等5条河流', where we expect '双辽境内除东辽河、西辽河等五条河流'.

Evidence

• On the latest version, i.e. nemo-text-processing=0.2.0rc0, it always normalized it as '双辽境内除东辽河、西辽河等5条河流';

• On the previous version, i.e. nemo-text-processing=0.1.8rc0, it normalized it as expected text, '双辽境内除东辽河、西辽河等五条河流'.

Detailed Log

• 0.2.0rc0

In [1]: from nemo_text_processing.text_normalization.normalize import Normalizer

In [2]: normalizer = Normalizer(lang='zh', input_case='cased', overwrite_cache=True, cache_dir="./cache_dir")

In [3]: text = '双辽境内除东辽河、西辽河等5条河流'

In [4]: normalizer.normalize(text)
Out[4]: '双辽境内除东辽河、西辽河等5条河流'

• 0.1.8rc0

Downloading nemo_text_processing-0.1.8rc0-py3-none-any.whl (2.3 MB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 2.3/2.3 MB 12.5 MB/s eta 0:00:00
Installing collected packages: nemo-text-processing
  Attempting uninstall: nemo-text-processing
    Found existing installation: nemo-text-processing 0.2.0rc0
    Uninstalling nemo-text-processing-0.2.0rc0:
      Successfully uninstalled nemo-text-processing-0.2.0rc0
Successfully installed nemo-text-processing-0.1.8rc0


In [1]: from nemo_text_processing.text_normalization.normalize import Normalizer

In [2]: normalizer = Normalizer(lang='zh', input_case='cased', overwrite_cache=True, cache_dir="./cache_dir")

In [3]: text = '双辽境内除东辽河、西辽河等5条河流'

In [4]: normalizer.normalize(text)
Out[4]: '双辽境内除东辽河、西辽河等五条河流'

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