[BUGFIX] Do not download artifacts in gitlab voting stage

By default, gitlab passes all artifacts from previous
stages to each job. Thus, the negative-vote job was not
executed in case previous jobs with artifacts failed.

Since those jobs don't need artifacts anyways, not
downloading them solves the issue.

See: https://docs.gitlab.com/ee/ci/yaml/README.html#dependencies

Change-Id: Id38354949ddc7b9f059dc4203208b4e949568b2d
Resolves: #94013
Releases: master, 10.4, 9.5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68904


Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>