Changes:
  <https://github.com/pygments/pygments/blob/2.8.0/CHANGES#L10-L150>

The 2.8.0 release contains fixes to existing lexers, as well as the
following new lexers:
  amdgpu, cddl, futhark, graphviz/dot, markdown

Bug: T274741
Change-Id: I84c32591a06aac5e1afe46dab1f80bb53d981bb3