[Snek] [keith-packard/snek] e1cbf2: .github: Update qemu versions

[Keith Packard]

  Branch: refs/heads/main
  Home:   https://github.com/keith-packard/snek
  Commit: e1cbf2defe51c15462282fcc213543548726cbfb
      https://github.com/keith-packard/snek/commit/e1cbf2defe51c15462282fcc213543548726cbfb
  Author: Keith Packard <keithp at keithp.com>
  Date:   2021-02-05 (Fri, 05 Feb 2021)

  Changed paths:
    M .github/Dockerfile

  Log Message:
  -----------
  .github: Update qemu versions

Signed-off-by: Keith Packard <keithp at keithp.com>