feat: Rollback ICU GB18030-2022 PUA mappings #6
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The ICU upstream has adjusted the mapping relationship of the PUA area, not fully compliant with the GB18030-2022 standard. This patch rollback the modifications to these PUA character mappings. See unicode-org/icu#2430
and https://unicode-org.atlassian.net/browse/ICU-22420
Log: Rollback GB18030 PUA mappings.
Task: PMS-370243