Enable gitpod feature flag by default

What does this MR do?

This MR enables the gitpod feature by default and updates the relevant tests + docs.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

References

• Related to #258206 (closed)