Geode: Update build slave to Ubutnu 20.04

Change-Id: Id07452266f9ce32c0335d1d465e4865b2f5e8257
8 files changed
tree: 35d8bc5db167585205fbd715668307704889199d
  1. jjb/
  2. .gitignore
  3. .gitreview
  4. .yamllint
  5. tox.ini