Roll third_party/icu/ 2c51e5cc7..1e49ac26d (8 commits)

https://chromium.googlesource.com/chromium/deps/icu.git/+log/2c51e5cc7e0a..1e49ac26ddc7

Created with:
  roll-dep third_party/icu

Change-Id: I1303cb8c6a83940d54465fa383b73051035b66f3
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/104250
Reviewed-by: Nigi <nigi@chromium.org>
Commit-Queue: Nigi <nigi@chromium.org>
Auto-Submit: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 04ef35a..138117b 100644
--- a/DEPS
+++ b/DEPS
@@ -86,7 +86,7 @@
   # 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': '2c51e5cc7e0a06cd4cd7cb2ddbac445af9b475ba',
+  'icu_revision': '1e49ac26ddc712b1ab702f69023cbc57e9ae6628',
   # 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.