deps: backport ICU-20575 to fix err/crasher

- Floating patch for ICU 64.x
- includes test case

ICU Bug: https://unicode-org.atlassian.net/browse/ICU-20575
Backport of: unicode-org/icu#634
Fixes: nodejs#27418

Author: srl295

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 +126,13 @@ 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/27418
+      const env = { ...process.env, LC_ALL: 'fr@EURO' };
+      execFile(
+          process.execPath, ['-p', 'new Intl.NumberFormat().resolvedOptions().locale'],
+          { env },
+          common.mustCall((e) => assert.ifError(e))
+      );
+  }
 }