Update checkout and upload-artifact action to v3 to mute nodejs
deprecation warning.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
(cherry picked from commit 52570d4242)
GitHub CI actions/checkout uses a merge commit which isn't compatible
with our formality checks. Instead checkout the pull request HEAD.
Signed-off-by: Paul Spooren <mail@aparcar.org>
(cherry picked from commit 13c1f2bcda)