Update github workflow to main branch

instead of testing the now stale master, test the current main branch.

Change-Id: Ia480e81e08ed2e42b542a92d7564979f063e4cda
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/2682186
Reviewed-by: Curtis Malainey <cujomalainey@chromium.org>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
1 file changed