Roll third_party/icu/ 64e5d7d43..fd97d4326 (6 commits)

https://chromium.googlesource.com/chromium/deps/icu.git/+log/64e5d7d43a1f..fd97d4326fac

Created with:
  roll-dep third_party/icu

TBR=tsepez@chromium.org

Change-Id: Ic67e3598e282a0a21de1b0540b97254ceb12df4f
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/57253
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

DEPS

diff --git a/DEPS b/DEPS
index 1fdce96..f483afe 100644
--- a/DEPS
+++ b/DEPS
@@ -22,7 +22,7 @@
   'depot_tools_revision': '26af0d34d281440ad0dc6d2e43fe60f32ef62da0',
   'freetype_revision': '983a87c6ece8d46e33bf7f6ff68f61b0d7a133d2',
   'gtest_revision': 'd7003576dd133856432e2e07340f45926242cc3a',
-  'icu_revision': '64e5d7d43a1ff205e3787ab6150bbc1a1837332b',
+  'icu_revision': 'fd97d4326fac6da84452b2d5fe75ff0949368dab',
   'instrumented_lib_revision': 'a959e4f0cb643003f2d75d179cede449979e3e77',
   'jinja2_revision': '45571de473282bd1d8b63a8dfcb1fd268d0635d2',
   'jpeg_turbo_revision': 'e1669e3707c6448a01c8a0dc3e4b20976a4dacf3',