test: make test-dotenv-node-options locale-independent

PR-URL: nodejs#49470
Reviewed-By: Chemi Atlow <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: LiviaMedeiros

test/parallel/test-dotenv-node-options.js

@@ -46,7 +46,7 @@ describe('.env supports NODE_OPTIONS', () => {
 
   it('TZ environment variable', { skip: !common.hasIntl || process.config.variables.icu_small }, async () => {
     const code = `
-      require('assert')(new Date().toString().includes('Hawaii'))
+      require('assert')(new Date().toString().includes('GMT-1000'))
     `.trim();
     const child = await common.spawnPromisified(
       process.execPath,