Update symfony/var-dumper requirement from ^5.4 to ^7.1

[dependabot]

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

Release notes

Sourced from symfony/var-dumper's releases.

v7.1.4

Changelog (symfony/var-dumper@v7.1.3...v7.1.4)

• bug symfony/symfony#57997 [Console][PhpUnitBridge][VarDumper] Fix handling NO_COLOR env var (@​nicolas-grekas)

Changelog

Sourced from symfony/var-dumper's changelog.

CHANGELOG

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

• Add support for FFI\CData and FFI\CType
• Deprecate calling VarDumper::setHandler() without arguments

5.4

• Add ability to style integer and double values independently
• Add casters for Symfony's UUIDs and ULIDs
• Add support for Fiber

5.2.0

• added support for PHPUnit --colors option
• added VAR_DUMPER_FORMAT=server env var value support
• prevent replacing the handler when the VAR_DUMPER_FORMAT env var is set

5.1.0

... (truncated)

Commits

• a5fa748 Merge branch '6.4' into 7.1
• ee14c82 Merge branch '5.4' into 6.4
• 6be6a6a [VarDumper] Fix tests
• 6c7d1f0 Merge branch '6.4' into 7.1
• c16bb04 Merge branch '5.4' into 6.4
• 04138d9 fix compatibility with Twig 3.12
• 5691ea3 Merge branch '6.4' into 7.1
• 8fd821e Merge branch '5.4' into 6.4
• 5051452 [PhpUnitBridge][Console][VarDumper] Fix handling NO_COLOR env var
• 380ecec Merge branch '6.4' into 7.1
• Additional commits viewable in compare view

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[tfirdaus]

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