Rename gitlab-ee to gitlab in version check helper

What does this MR do?

When I click on version number on /help page, it should take me to a new project name

Screenshots

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content