Now that the static-checks job only takes care of running the
static-checks, let's clean it up, remove all the unneeded steps, make
sure that we're using the actions in their latest version, and have it
running in a cost free runner.
At some point I'd like to see those tests done in parallel, in the same
way that I've organised the build-checks, but that's something for
someone else, at some other time.
Fixes: #7974 -- part 0
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
8b1e9b0c75