gitlab: Add trust stage
There may be a case where one wants to run checks before the review is completed. However, testgroupt-trust test is now part of the lint stage whose failure would prevent from running later stages such as build and bisect. Add a separate stage for testgroup-trust test and move it to the last.
Signed-off-by: Hidenori Kobayashi hidenorik@chromium.org
Closes #27 (closed)