Remove pull request CI waiting times

### Description

This is rather complex and not providing much value at the moment, we should consider removing this

### Discussion

_No response_

### Motivation

_No response_

### Details

_No response_

Start by locating the pull-request CI configuration and tracing where its waiting times are introduced. The issue names no files or tests, so first clarify which waits should be removed and what CI behavior must remain; done means the agreed waits are gone without losing required checks.

Written by the indexing model from the issue text.