Revert "fedora:39 -> fedora:40 (#332)"

This reverts commit 72c674fcd70f4d5462cb6af2ecbae6fecd82d4c2.

I have to - it turns out autests fail with fedora:40.
4 files changed
tree: dece5f9d0882b981ef63f2c5840f316fac1e3567
  1. abi/
  2. bin/
  3. docker/
  4. jenkins/
  5. README.md
README.md

trafficserver-ci