t/*.t: fix invalid prereq phase names: s/testing/test/
RT#88083 Do not report 'develop' prereqs

The list of prereqs phase is now strictly limited to:
  configure build test runtime

Thanks to:
- Kent Frederic (KENTNL), Graham Knop (HAARG) for diagnosing this issue
- Karen Etheridge (ETHER) for reporting it
Changes for release 1.10