Bump helmpack/chart-testing from v3.4.0 to v3.5.0 in /.gitlab/docker/ci

Can't show this merge request because the source branch dependabot-docker-.gitlab-docker-ci-helmpack-chart-testing-v3.5.0 is missing from project georgekoltsov-multiple-projects-test-4/imported-project-ef029319134ab099. Close this merge request or update the source branch.