fix(deps): update dependency symfony/yaml to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
symfony/yaml (source)	^7.0 → ^8.0

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Release Notes

symfony/yaml (symfony/yaml)

v8.1.0

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Changelog (symfony/yaml@v8.1.0-RC1...v8.1.0)

• bug #​64388 Fix parsing inline anchored values (@​nicolas-grekas)

v8.0.14

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v8.0.13

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Changelog (symfony/yaml@v8.0.12...v8.0.13)

• bug #​64316 Allow trailing newlines after the end-of-document marker (@​nicolas-grekas)

v8.0.12

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Changelog (symfony/yaml@v8.0.11...v8.0.12)

• security #cve-2026-45305 Harden the Parser::cleanup() regexes against catastrophic backtracking (@​nicolas-grekas)
• security #cve-2026-45304 Bound collection-alias resolution in the parser (@​nicolas-grekas)
• security #cve-2026-45133 Bound recursion depth in the parser (@​nicolas-grekas)

v8.0.11

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Changelog (symfony/yaml@v8.0.10...v8.0.11)

• bug #​64196 Reject non-stringables when using "!!binary" (@​nicolas-grekas)

v8.0.10

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Changelog (symfony/yaml@v8.0.6...v8.0.10)

• bug #​64119 fix flow collection drops &anchor and !!str &anchor items (@​ousamabenyounes)

v8.0.8

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Changelog (symfony/yaml@v8.0.7...v8.0.8)

• no significant changes

v8.0.6

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Changelog (symfony/yaml@v8.0.5...v8.0.6)

• bug #​57292 Fix parsing nested mappings in sequences (@​HypeMC)

v8.0.1

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Changelog (symfony/yaml@v8.0.0...v8.0.1)

• bug symfony/symfony#62612 [Yaml] Fix regression handling blank lines in unquoted scalars (@​yoeunes)

v8.0.0

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v7.4.14

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Changelog (symfony/yaml@v7.4.13...v7.4.14)

• minor #​64476 Unsafe unserialize phpstan rule (@​jack-worman)
• bug #​64388 Fix parsing inline anchored values (@​nicolas-grekas)

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