Updated text_norm for `aishell` recipe #2564

Job	Run time
unit_tests (3.8, pip install torch==1.12.1 torchaudio==0.12.1 --extra-index-url https://download....	8m 27s
unit_tests (3.9, pip install torch==2.0 torchaudio==2.0 --extra-index-url https://download.pytorc...	10m 50s
unit_tests (3.10, pip install torch==2.1 torchaudio==2.1 --extra-index-url https://download.pytor...	7m 21s
unit_tests (3.11, pip install torch==2.2 torchaudio==2.2 --extra-index-url https://download.pytor...	6m 30s
unit_tests (3.12, pip install torch==2.2 torchaudio==2.2 --extra-index-url https://download.pytor...	8m 43s
	41m 51s

Provide feedback