Allow phpdocumentor/reflection-docblock ^6.0

[tacman]

Motivation and Context

composer outdated
Color legend:
- patch or minor release available - update recommended
- major release available - update possible

Direct dependencies required in composer.json:
Everything up to date

Transitive dependencies not required in composer.json:
doctrine/collections              2.6.0  3.0.0 PHP Doctrine Collections library that adds additional functionality on top of PHP arrays.
phpdocumentor/reflection-docblock 5.6.6  6.0.2 With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve informati...
phpdocumentor/type-resolver       1.12.0 2.0.0 A PSR-5 based resolver of Class names, Types and Structural Element Names

[chr-hertel]

Hey @tacman, thanks for jumping on that 👍 pipeline failure looks related