To actually use ccache cache on kernel test from pr, the kernel workflow
has to be run first from a push action.
This will permit as a side effect to test merged commits and catch commit
that may cause regression in kernel compilation even outside the github
system.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
(cherry picked from commit 23e946d1aded1fc21125704c0819146d5772d72b)
305688f537