Update branch patterns for parent jobs

Some jobs had two versions,
one for branches that /didn't/ match
'^(unmaintained/|stable/(2024.1|2024.2))'
and one for branches that did match
'^(stable/(2024.1|2024.2))'. This means that
this job does not exist on the unmaintained/2024.1
and 2024.2 branches, leading to jobs there not running.

Change-Id: I10b8b020668c49315723d6f0e464f6da8c76cb56
Signed-off-by: Zachary Raines <zachary.raines@canonical.com>
1 file changed