Martin Hořeňovský 88504e5332
Use Ubuntu-20.04 runner for running header guard validation
Using `ubuntu-latest` is triggering warning that it will soon migrate
from 18.04 to 20.04, so I am migrating preventively.
2020-11-28 23:09:10 +01:00
..
2020-11-28 21:13:00 +01:00