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: unicode-org/icu#632
Fixes: #27379
Co-authored-by: Refael Ackermann <refack@gmail.com>

PR-URL: #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>

test/parallel/test-intl.js

@@ -22,6 +22,7 @@
 'use strict';
 const common = require('../common');
 const assert = require('assert');
+const { execFile } = require('child_process');
 
 // Does node think that i18n was enabled?
 let enablei18n = process.config.variables.v8_enable_i18n_support;
@@ -125,4 +126,14 @@ if (!common.hasIntl) {
   assert.strictEqual(coll.compare('Bluebird', 'bluebird'), 0);
   // `ffi` ligature (contraction)
   assert.strictEqual(coll.compare('\ufb03', 'ffi'), 0);
+
+  {
+    // Regression test for https://github.com/nodejs/node/issues/27379
+    const env = { ...process.env, LC_ALL: 'ja' };
+    execFile(
+      process.execPath, ['-p', 'new Date().toLocaleString()'],
+      { env },
+      common.mustCall((e) => assert.ifError(e))
+    );
+  }
 }