Fix issues with Validatable config job

Per #3325551-121: Add "Disable image resize" setting to image fields → , the exception case for typesInUse should be expanded for objectPropertyPathsFullyValidatable. Because that percentage decreases too (and hence triggers a job failure) for core changes that add a new (validatable!) property path to a config object that is itself not yet fully validatable — because the total set of object property paths increases and hence the percentage of fully validatable property paths decreases, even if this definitely did not worsen the situation.

Fixed that in the MR.

Dunno if this is the right spot to fix it, but this job seems to be consistently failing now due to composer not being able to find a compatible version of drush/drush to install. E.g. https://git.drupalcode.org/issue/drupal-1383696/-/jobs/1255858

Your requirements could not be resolved to an installable set of packages.
...

I briefly searched the queue and this was the only issue that seems close. Should we handle this drush incompatibility separately, or here?

Thanks,
-Derek

maybe skip the job while drush incompatible?

Let's add when: manual to the job until drush is fixed https://docs.gitlab.com/ee/ci/jobs/job_control.html