Rename 'environment check' job to something alerting

Migrated issue

Reported by: jonathan1055

Related to !364 (merged) !363 (merged)

Problem/Motivation

The "environment check" job, which runs in the .pre stage, will only ever run if there is a major problem. But the significance of this failure can be missed or ignored due the ordinary name of the job.

Proposed resolution

Rename the job to something more alerting to grab attention, such as "⚠️ pre checks failed ⚠️"

The background is on this slack conversation

Example of the renamed job

pipeline set-up failed