gitlab-runner-helper: use default umask
scripts/gitlab-runner-helper sets umask to 0000 to fix issues where ci jobs would be running as a different user, preventing access to files. This causes issues when files in repositories end up in build artifacts with world writable permissions. One such example is the alpine-gitlab-ci project where `/etc/sudoers.d` ends up word-writable, preventing sudo to work. Set it to the standard 0022 to fix this issue.
fix-umask-issue in 25 seconds (queued for 2 seconds)3 jobs for