[build] Fix git action issue

Fix syntax error.
Remove specialized action parameter that will become unnecessary with
fxrev.dev/642467

Change-Id: Ifb40001084d9768e00ac388c4e59b1f8f8125779
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/642470
Reviewed-by: Yilong Li <liyl@google.com>
1 file changed