- Added detailed documentation about the deprecation of annotations in favor of attributes for Symfony >= 7.0.
- Updated configuration examples for both annotation-based and attribute-based serializers.
- Fixed a broken link to Symfony Flex documentation.

* docs(validation): add missing hook (#1795)

docs: add missing hook in validation.md for "Dynamic validation groups"

* docs(content-negociation): document how to declare an encoder for custom format (#1797)

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Co-authored-by: MickaelSchimpf <122897940+MickaelSchimpf@users.noreply.github.com>
Co-authored-by: Nicolas PHILIPPE <nikophil@gmail.com>