[quake3-commits] [ioquake/ioq3] dbdd13: Update CI to Ubuntu 20.04

[Tim Angus]

  Branch: refs/heads/main
  Home:   https://github.com/ioquake/ioq3
  Commit: dbdd13e89e703b14b70979612794d73bd96d466e
      https://github.com/ioquake/ioq3/commit/dbdd13e89e703b14b70979612794d73bd96d466e
  Author: Tim Angus <tim at ngus.net>
  Date:   2023-04-17 (Mon, 17 Apr 2023)

  Changed paths:
    M .github/workflows/build.yml

  Log Message:
  -----------
  Update CI to Ubuntu 20.04