Allow sebastian/version 7.0 or move to require-dev

Describe the bug
Please describe the problem here.

phing/phing dev-main cannot be installed alongside phpunit/phpunit 13.3 or pestphp/pest 5.2 due to incompatible requirement for sebastian/version 7.0 (instead of ^3.0|^4.0|^5.0|^6.0).

Steps To Reproduce
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composer.json with phpunit/phpunit 13.3 or pestphp/pest 5.2 and phing/phing dev-main

Expected behavior
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Add ^7.0 to allowed versions of sebastian/version or move it to require-dev

Screenshots / terminal output
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Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires pestphp/pest ^5.2 -> satisfiable by pestphp/pest[v5.2.0, v5.2.1].
    - Root composer.json requires phing/phing dev-main -> satisfiable by phing/phing[dev-main].
    - pestphp/pest v5.2.0 requires phpunit/phpunit ^13.3.3 -> satisfiable by phpunit/phpunit[13.3.3, 13.3.4].
    - pestphp/pest v5.2.1 requires phpunit/phpunit ^13.3.4 -> satisfiable by phpunit/phpunit[13.3.4].
    - phpunit/phpunit[13.3.3, ..., 13.3.4] require sebastian/version ^7.0.0 -> satisfiable by sebastian/version[7.0.0].
    - Conclusion: don't install sebastian/version 7.0.0 (conflict analysis result)

Additional context
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N/A

Start by inspecting the repository's Composer dependency declarations and reproduce the conflict with phpunit/phpunit 13.3 or pestphp/pest 5.2 alongside phing/phing dev-main. Update the sebastian/version constraint or its dependency section as appropriate, then verify that Composer resolves the dependency set successfully.