Generate new knapsack report on master pipelines

Automatically fetches up to date knapsack reports and updates them on master runs.

This MR updates the pipeline based on changes introduced in: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/77316

Part of: https://gitlab.com/gitlab-org/gitlab/-/issues/13042

A follow up for this change: https://gitlab.com/gitlab-org/gitlab-qa/-/issues/658