chore(deps-dev): update symfony/var-dumper requirement from ^7.4 || ^8.0 to ^8.0.8

[dependabot]

Updates the requirements on symfony/var-dumper to permit the latest version.

Changelog

Sourced from symfony/var-dumper's changelog.

CHANGELOG

7.4

• Add support for adding more default casters to AbstractCloner::addDefaultCasters()
• Select HtmlDumper only if Accept header contains "html"

7.3

• Add casters for Dba\Connection, SQLite3Result, OpenSSLAsymmetricKey and OpenSSLCertificateSigningRequest
• Deprecate ResourceCaster::castCurl(), ResourceCaster::castGd() and ResourceCaster::castOpensslX509()
• Mark all casters as @internal

7.2

• Add support for FORCE_COLOR environment variable
• Add support for virtual properties

7.1

• Add support for new DOM extension classes in DOMCaster

7.0

• Add argument $label to VarDumper::dump()
• Require explicit argument when calling VarDumper::setHandler()
• Remove display of backtrace in Twig_Template, only Twig\Template is supported

6.4

• Dump uninitialized properties

6.3

• Add caster for WeakMap
• Add support of named arguments to dd() and dump() to display the argument name
• Add support for Relay\Relay
• Add display of invisible characters

6.2

... (truncated)

Commits

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[dependabot]

Superseded by #293.