minor #48431 [FrameworkBundle] Add alximy as backer of v6.2 (nicolas-grekas)

This PR was merged into the 6.2 branch.

Discussion
----------

[FrameworkBundle] Add alximy as backer of v6.2

| Q             | A
| ------------- | ---
| Branch?       | 6.2
| Bug fix?      | yes (so that it appears on the changelog?)
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Thanks Alximy for backing FrameworkBundle v6.2!

/cc `@HeahDude` `@jnadaud` `@jeremyFreeAgent` 🤗

If you're reading this message and are wondering how to sponsor a component or a version, please let me know!

Commits
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c6bf916147 [FrameworkBundle] Add alximy as backer of v6.2

Author: fabpot

README.md

@@ -4,10 +4,27 @@ FrameworkBundle
 FrameworkBundle provides a tight integration between Symfony components and the
 Symfony full-stack framework.
 
+Sponsor
+-------
+
+The FrameworkBundle for Symfony 6.2 is [backed][1] by [alximy][2].
+
+A team of passionate humans from very different backgrounds, sharing their love of
+PHP, Symfony and its ecosystem. Their CTO, Expert developers, tech leads, can help
+you learn or develop the tools you need, and perform audits or tailored workshops.
+They value contributing to the Open Source community and are willing to mentor new
+contributors in their team or yours.
+
+Help Symfony by [sponsoring][3] its development!
+
 Resources
 ---------
 
  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
  * [Report issues](https://github.com/symfony/symfony/issues) and
    [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://alximy.io/
+[3]: https://symfony.com/sponsor