The required compile-and-test checks come from ci.yml, which is
path-filtered. A workflow skipped by path filtering leaves its
required checks pending forever, so bonsai-only pull requests were
blocked. Trigger the workflow unconditionally, detect relevant
changes in a changes job, and skip the heavy matrix job with an if
condition (a job skipped by a conditional is reported as success).
Generated with the assistance of an AI coding tool.
CyrilWaechter
b08de6fa7e