Resolve "build-gitpod-workspace-image job fails (2022-06)"

What does this Merge Request do and why?

This MR aims to resolve failures within the Gitpod Docker image creation where PostgreSQL libraries cannot be found when attempting to install the pg gem.

Merge Request checklist

• This change is backward compatible. If not, please include steps to communicate to our users.
• Tests added for new functionality. If not, please raise Issue to follow-up.
• Documentation added/updated, if needed.
• gdk doctor test added, if needed.
• Add the ~highlight label if this MR should be included in the CHANGELOG.md.

Closes #1515 (closed)