Test: scheduler: ensure all test CIBs have supported transition-key and transition-magic

2.0.0 dropped support for omitted or insufficient transition-key and
transition-magic in CIBs. However many of our very old scheduler regression
tests had such, which worked "well enough" until 173c7de. This fixes the test
CIBs.

This actually had one true change in test output: test 735 was previously
broken due to invalid transition keys. With corrected keys, the output is now
correct.