enhance Test rules

[yiheng-wang-nv]

The current cpu check error is due to github's machine does not have enough spaces (this PR changes multiple bundles, thus requires large spaces). Since the blossom machine based tests are successful, I will temporarily modify the PR merge requirement, and merge it first. cc @ericspod

This was the only way forward at the moment so it's fine. I would suggest we need to consider here, and in other repos, how to formulate test rules to be skipped if documentation files alone are changed in which case code doesn't need testing.

Originally posted by @ericspod in #752 (comment)