tools: only include fast-tracked and old enough PRs in CQ

[aduh95]

IIUC we are searching for:

• PRs with commit-queue Add this label to land a pull request using GitHub Actions. that are more than 48 hours old
• PRs with commit-queue Add this label to land a pull request using GitHub Actions. and fast-track PRs that do not need to wait for 48 hours to land.
• PRs with commit-queue Add this label to land a pull request using GitHub Actions.

That third category is redundant, we know that those PRs are not ready yet, we'd better filter them out.

Also updates the commit-queue doc with changes from #65101 and #65162.

[nodejs-github-bot]

Review requested:

• @nodejs/actions

[github-actions]

Fast-track has been requested by @panva. Please 👍 to approve.