Roll ICU to CP fix of minimum grouping digigs

Cherry-pick pull/1152to fix minimum group digits

Needed to fix Minimum Grouping Digits for Intl.RelativeTimeFormat
Add ability to use locale default for minimum grouping digits
 - patches/grouping_digits.patch
 - upstream PR:
   https://github.com/unicode-org/icu/pull/1152
 - upbstream bug:
   https://unicode-org.atlassian.net/browse/ICU-21109

https://chromium.googlesource.com/chromium/deps/icu.git/+log/46f53df..9e7dae8

9e7dae8 Cherry-pick pull/1152to fix minimum group digits
e4b8586 Remove *.mk files which no longer exist
c981f19 Sort the list in the filter files w/o changes

All these three has no dat size impact.

Bug: v8:10443
Change-Id: I3b4e32fae2e50c804bc906c5e279f198b35ad752
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2242745Reviewed-by: Jungshik Shin <jshin@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#777959}

DEPS

@@ -1011,7 +1011,7 @@ deps = {
     Var('chromium_git') + '/chromium/deps/hunspell_dictionaries.git' + '@' + '6fdad5388130757e1efb58a14b8e7f9494625691',
 
   'src/third_party/icu':
-    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '46f53dfc09c520b7c520a089ca473bb0ee29c07e',
+    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '9e7dae8c9a3f3b41afdf1a9f5e78f0299fb93e4e',
 
   'src/third_party/icu4j': {
       'packages': [