Remove EOL spaces in doc files - 2025-10-07

Removes EOL spaces.

See https://about.gitlab.com/handbook/product/ux/technical-writing/#regularly-scheduled-tasks

Created automatically: https://gitlab.com/gitlab-org/technical-writing/docs-gitlab-com/-/blob/main/doc/tasks.md#markdown-eol-spaces

Relates to: Technical Writing recurring tasks for: 2025-10 (gitlab-org/technical-writing/team-tasks#1474 - closed)