build(deps-dev): update symfony/config requirement from ^6.4 || ^7.0 to ^6.4 || ^7.0 || ^8.0

[dependabot]

Updates the requirements on symfony/config to permit the latest version.

Release notes

Sourced from symfony/config's releases.

v8.0.8

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

• no significant changes

Changelog

Sourced from symfony/config's changelog.

CHANGELOG

8.0

• Remove support for accessing the internal scope of the loader in PHP config files, use only its public API instead
• Add argument $singular to NodeBuilder::arrayNode()
• Add argument $info to ArrayNodeDefinition::canBeDisabled() and canBeEnabled()
• Ensure configuration nodes do not have both isRequired() and defaultValue()
• Remove generation of fluent methods in config builders

7.4

• Add TagAwareAdapterInterface to NullAdapter
• Add argument $singular to NodeBuilder::arrayNode() to decouple plurals/singulars from XML
• Add support for defaultNull() on ArrayNodeDefinition
• Add ArrayNodeDefinition::acceptAndWrap() to list alternative types that should be accepted and wrapped in an array
• Add array-shapes to generated config builders
• Deprecate accessing the internal scope of the loader in PHP config files, use only its public API instead
• Deprecate setting a default value to a node that is required, and vice versa
• Deprecate fluent config builders, return PHP arrays from your config instead

7.3

• Add ExprBuilder::ifFalse()
• Add support for info on ArrayNodeDefinition::canBeEnabled() and ArrayNodeDefinition::canBeDisabled()
• Allow using an enum FQCN with EnumNode
• Add NodeDefinition::docUrl()

7.2

• Add #[WhenNot] attribute to prevent service from being registered in a specific environment
• Generate a meta file in JSON format for resource tracking
• Add SkippingResourceChecker
• Add support for defaultNull() on BooleanNodeDefinition
• Add StringNode and StringNodeDefinition
• Add ArrayNodeDefinition::stringPrototype() method
• Add NodeBuilder::stringNode() method

7.1

• Allow custom meta location in ResourceCheckerConfigCache
• Allow custom meta location in ConfigCache

7.0

... (truncated)

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