[Mailer] Add Infobip bridge

Author: B-Galati

mailer.rst

@@ -111,6 +111,7 @@ Postmark            ``composer require symfony/postmark-mailer``
 SendGrid            ``composer require symfony/sendgrid-mailer``
 Sendinblue          ``composer require symfony/sendinblue-mailer``
 OhMySMTP            ``composer require symfony/oh-my-smtp-mailer``
+Infobip             ``composer require symfony/infobip-mailer``
 ==================  ==============================================
 
 Each library includes a :ref:`Symfony Flex recipe <symfony-flex>` that will add
@@ -162,6 +163,7 @@ Postmark             postmark+smtp://ID@default                           n/a
 Sendgrid             sendgrid+smtp://KEY@default                          n/a                                         sendgrid+api://KEY@default
 Sendinblue           sendinblue+smtp://USERNAME:PASSWORD@default          n/a                                         sendinblue+api://KEY@default
 OhMySMTP             ohmysmtp+smtp://API_TOKEN@default                    n/a                                         ohmysmtp+api://API_TOKEN@default
+Infobip              infobip+smtp://KEY@default                           n/a                                         infobip+api://KEY@BASE_URL
 ==================== ==================================================== =========================================== ========================================
 
 .. caution::