Use the new ICU 71-1 API

Precision::incrementExact
https://unicode-org.github.io/icu-docs/apidoc/dev/icu4c/classicu_1_1number_1_1Precision.html#aedfb413e5a37c69868594c870a87134b

Change-Id: I6d8841e5a07972d1be36026ce150eb83dbf300e7
Cq-Include-Trybots: luci.v8.try:v8_android_arm64_n5x_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3430378Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80126}