Update the list of sponsors for Symfony 6.4 🙏

Author: nicolas-grekas

README.md

@@ -6,19 +6,7 @@ The Notifier component sends notifications via one or more channels (email, SMS,
 Sponsor
 -------
 
-The Notifier component for Symfony 6.2 is [backed][1] by [Prisma Media][2].
-
-Prisma Media has become in 40 years the n°1 French publishing group, on print and
-digitally, with 20 flagship brands of the news magazines : Femme Actuelle, GEO,
-Capital, Gala or Télé-Loisirs… Today, more than 42 million French people are in
-contact with one of our brand each month, either by leafing through a magazine,
-surfing the web, subscribing one our mobile or tablet application or listening to
-our podcasts' series. Prisma Media has successfully transformed one's business
-model : from a historic player in the world of paper, it has become in 5 years
-one of the first publishers of multi-media editorial content, and one of the
-first creators of digital solutions.
-
-Help Symfony by [sponsoring][3] its development!
+Help Symfony by [sponsoring][1] its development!
 
 Resources
 ---------
@@ -29,6 +17,4 @@ Resources
    [send Pull Requests](https://github.com/symfony/symfony/pulls)
    in the [main Symfony repository](https://github.com/symfony/symfony)
 
-[1]: https://symfony.com/backers
-[2]: https://www.prismamedia.com
-[3]: https://symfony.com/sponsor
+[1]: https://symfony.com/sponsor