Allow new version of sebastian/version for phpunit 11 compatibility

[tkegan]

This PR if accepted updates the allowed versions of the dependency sebastian/version allowing phing to be used in projects which wish to use phpunit version 11.x for testing.

Note because phing uses phpunit version 9 for unit testing which depends on sebastian/version version 3.x running unit tests alone is not a sufficient test of this dependency change. Instead a project needs to be created using phing and phpunit (at version 11) and the build.xml needs to include a target which invokes Phing::getPhingVersion. I've tried this in a closed source project but can come up with a stripped down example if desired.