deps: backport ICU-20558 to fix Intl crasher

- Floating patch for ICU 63.x and 64.x
- fixing crash in Intl when ICU data not found.
- Regression test from refack included.

Background:
- ICU-13778 (landed in ICU 63.1) fixed a bug but
added a regression.
- a recent v8 land in Node v12 (which one?) exposes
this bug to cause a crash when ICU data is not found.

ICU Bug: https://unicode-org.atlassian.net/browse/ICU-20558
Backport of: https://github.com/unicode-org/icu/pull/632
Fixes: https://github.com/nodejs/node/issues/27379


Co-authored-by: Refael Ackermann <refack@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/27415


Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>