fix: increase time range for release information dashboard

We currently have the time range to 7 days, but due to how sparse we push the metrics and how we perform transformations on them, we need to fetch the metrics from a longer time, specifically "the longest time between when the metrics are pushed". This would be between the release day (third thursday of last month) to the initial preparation day (second Friday of the month), which is 22 days.

This MR addresses the bug where it doesn't sort the fetched metrics properly due to the time range fetched.

snapshot demo: https://dashboards.gitlab.net/dashboard/snapshot/d8IWNuc503HyLkePBywOdnSjRyLa97GP?orgId=1

❯ ./test-dashboard.sh delivery/release_info.dashboard.jsonnet
Installed https://dashboards.gitlab.net/dashboard/snapshot/d8IWNuc503HyLkePBywOdnSjRyLa97GP - delivery: Release Information