Use improved (slimmer) package versions endpoint

[johnnymetz]

Prerequisites

• Blocked by https://github.com/pixiebrix/pixiebrix-app/issues/4876

User Story

As a user, I want the brick history page to be fast and snappy, not slow and laggy

Motivation

The brick history page is slow and laggy, see https://github.com/pixiebrix/pixiebrix-extension/issues/7409

Related App ticket: https://github.com/pixiebrix/pixiebrix-app/issues/4627

Acceptance Criteria

• Use the new package versions endpoint when generating the list of versions for a given package
• Ensure the dropdown is fast and snappy