[ja] replace Japanese PII

[fujiki-1emon]

Background

• Seems that we don't have to implement a lot of pre-processing to replace Japanese PII
  • because there are already some PII pre-processing in language agnostic processing.
• But we might need to implement additionally to replace some Japanese specific PII.

TODOs

• replace Japanese phone number
  • But we might be able to just re-use the Korean one
    • cf. https://github.com/EleutherAI/dps/blob/master/dps/spark/utils/korean_utils.py#L182
• replace Japanese bank account number