Update ICU

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/e94822c..b867f20

Don't copy icudtl.dat.hash on non-ChromeOS builds (Andrea Orru)
https://chromium.googlesource.com/chromium/deps/icu/+/b867f20

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com,ftang@chromium.org

Change-Id: I0d625dc016f6776e000722f53cd94203e7c0d993
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3474042
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79187}

DEPS

@@ -228,7 +228,7 @@ deps = {
   'third_party/googletest/src':
     Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + 'c9461a9b55ba954df0489bab6420eb297bed846b',
   'third_party/icu':
-    Var('chromium_url') + '/chromium/deps/icu.git' + '@' + 'e94822cd43d01722869c19053303a18e893ecd00',
+    Var('chromium_url') + '/chromium/deps/icu.git' + '@' + 'b867f209e4b56b0a8c01aaaba3882ad41e438c4f',
   'third_party/instrumented_libraries':
     Var('chromium_url') + '/chromium/src/third_party/instrumented_libraries.git' + '@' + 'e09c4b66b6e87116eb190651421f1a6e2f3b9c52',
   'third_party/ittapi': {