Roll ICU to 8f91ea3a7 from 2b12f877

This is rolling ICU by one CL. See

  https://chromium.googlesource.com/chromium/deps/icu/+/8f91ea3a7e0413df3312204058da856058a8099b

for the change.

BUG=582470
TEST=See comments 13 and 15 in the bug
TBR=mmoroz

Review URL: https://codereview.chromium.org/1659153002

Cr-Commit-Position: refs/heads/master@{#373044}
diff --git a/DEPS b/DEPS
index e4196e4..82ba343 100644
--- a/DEPS
+++ b/DEPS
@@ -131,7 +131,7 @@
    Var('chromium_git') + '/external/colorama.git' + '@' + '799604a1041e9b3bc5d2789ecbd7e8db2e18e6b8',
 
   'src/third_party/icu':
-   Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '2b12f8775d66568f2b2e2bd8246efcfdff40d563',
+   Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '8f91ea3a7e0413df3312204058da856058a8099b',
 
   'src/third_party/libexif/sources':
    Var('chromium_git') + '/chromium/deps/libexif/sources.git' + '@' + '045b7fb9aa6d9b7f1954db248caf5eefe917476d',