Missing test coverage for some validators

Problem/Motivation

Discovered in #3338328-42: Update to Symfony 6.3 → that some validators don't have tests. Need to determine which still need them and plan from there. Maybe 1 ticket. Maybe many.

Steps to reproduce

In #3338328 SF 6.3 started to require update doc-block but patches since comment #34 updating not all validators to pass tests, near20 are skipped - difference between affected validators in patch and all core's validators

Proposed resolution

TBD

Remaining tasks

TBD

User interface changes

TBD

API changes

TBD

Data model changes

TBD

Release notes snippet

TBD