Update dependency symfony/yaml to v7

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
symfony/yaml (source)	^6.4.0 -> ^7.0.0

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Release Notes

symfony/yaml (symfony/yaml)

### [`v7.0.0`](https://togithub.com/symfony/yaml/releases/tag/v7.0.0) [Compare Source](https://togithub.com/symfony/yaml/compare/v6.4.0...v7.0.0) **Changelog** (https://github.com/symfony/yaml/compare/v7.0.0-RC2...v7.0.0) - no significant changes

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