feature #41172 [Notifier] Add Telnyx notifier bridge (StaffNowa)

This PR was squashed before being merged into the 5.4 branch.

Discussion
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[Notifier] Add Telnyx notifier bridge

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| License       | MIT
| Doc PR        | symfony/symfony-docs#15377
| Recipe PR   | symfony/recipes#951

Telnyx notifier https://developers.telnyx.com/docs/v2/messaging/quickstarts/sending-sms-and-mms

Commits
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f8a4d42e04 [Notifier] Add Telnyx notifier bridge

Author: fabpot

Resources/config/notifier_transports.php

@@ -42,6 +42,7 @@
 use Symfony\Component\Notifier\Bridge\SmsBiuras\SmsBiurasTransportFactory;
 use Symfony\Component\Notifier\Bridge\SpotHit\SpotHitTransportFactory;
 use Symfony\Component\Notifier\Bridge\Telegram\TelegramTransportFactory;
+use Symfony\Component\Notifier\Bridge\Telnyx\TelnyxTransportFactory;
 use Symfony\Component\Notifier\Bridge\Twilio\TwilioTransportFactory;
 use Symfony\Component\Notifier\Bridge\Zulip\ZulipTransportFactory;
 use Symfony\Component\Notifier\Transport\AbstractTransportFactory;
@@ -189,5 +190,9 @@
         ->set('notifier.transport_factory.messagebird', MessageBirdTransportFactory::class)
             ->parent('notifier.transport_factory.abstract')
             ->tag('texter.transport_factory')
+
+        ->set('notifier.transport_factory.telnyx', TelnyxTransportFactory::class)
+            ->parent('notifier.transport_factory.abstract')
+            ->tag('texter.transport_factory')
     ;
 };