891ff89a5d
ci: fix actions/checkout@v6 → @v4 (v6 does not exist) GitHub started rejecting invalid action versions at parse time, causing every CI run to fail with 0s / 'workflow file issue' before any jobs could start. * test(e2e): only no retry * test(e2e): use static name in tests to facilitate screenshot comparaison * test(e2e): update linux screenshots * test(e2e): adapt test due to user-vignette generation Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>