minor symfony#58745 [Notifier] Fix test with hard coded date in SmsboxTransportTest (alexandre-daubois)

This PR was merged into the 7.1 branch.

Discussion
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[Notifier] Fix test with hard coded date in `SmsboxTransportTest`

| Q             | A
| ------------- | ---
| Branch?       | 7.1
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

Fixes CI, see https://github.com/symfony/symfony/actions/runs/11654514385/job/32448126831#step:8:1756.

Commits
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2ee5364 [Notifier] Fix test with hard coded date in `SmsboxTransportTest`

Author: nicolas-grekas

src/Symfony/Component/Notifier/Bridge/Smsbox/Tests/SmsboxTransportTest.php

@@ -206,17 +206,18 @@ public function testSmsboxOptionsInvalidDateTimeAndDate()
             return $response;
         });
 
+        $dateTime = new \DateTimeImmutable('+1 day');
+
         $this->expectException(\InvalidArgumentException::class);
         $this->expectExceptionMessage("Either Symfony\Component\Notifier\Bridge\Smsbox\SmsboxOptions::dateTime() or Symfony\Component\Notifier\Bridge\Smsbox\SmsboxOptions::date() and Symfony\Component\Notifier\Bridge\Smsbox\SmsboxOptions::hour() must be called, but not both.");
-        $dateTime = \DateTimeImmutable::createFromFormat('d/m/Y H:i', '01/11/2024 18:00', new \DateTimeZone('UTC'));
         $message = new SmsMessage('+33612345678', 'Hello');
 
         $smsboxOptions = (new SmsboxOptions())
             ->mode(Mode::Expert)
             ->sender('SENDER')
             ->strategy(Strategy::Marketing)
             ->dateTime($dateTime)
-            ->date('01/01/2024');
+            ->date($dateTime->format('d/m/Y'));
 
         $transport = $this->createTransport($client);