Various summit updates (#165)

* CI centos:7 updates
* Have centos build with gcc-8
* Have fedora build with -std=20
4 files changed
tree: 6443c4db6ef23797ab869656a2a02331e36a3db0
  1. abi/
  2. bin/
  3. docker/
  4. jenkins/
  5. README.md
README.md

trafficserver-ci