Roll third_party/icu/ a67fc91f7..1b2e3e8a4 (2 commits)

https://chromium.googlesource.com/chromium/deps/icu.git/+log/a67fc91f7825..1b2e3e8a421e

Created with:
  roll-dep third_party/icu

Change-Id: I720ef6d0955e954c638d6a8294a79875eb3ea72b
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/134652
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Auto-Submit: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 542fa65..cf939cb 100644
--- a/DEPS
+++ b/DEPS
@@ -142,7 +142,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling icu
   # and whatever else without interference from each other.
-  'icu_revision': 'a67fc91f78253e8bc055275d785b634faf27c608',
+  'icu_revision': '1b2e3e8a421efae36141a7b932b41e315b089af8',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling instrumented_lib
   # and whatever else without interference from each other.