Automatic merge from submit-queue

Remove -e from 'go list' so missing files will halt the build

In the case that any of the files being processed by this pipeline are missing, `go list -e` sends the error to the template, which results in cryptic build errors like `No rule to make target '/*.go'`

This came up in #28987, and although that issue has already been fixed by munging the specific path - https://github.com/kubernetes/kubernetes/commit/2a4495cf8926b093e3f19ff5289c470002b940ec#diff-78183b4162626e1797dae5558b01caa0R423 - I suggest it would be best to take out the possibility of the same thing happening again for different reasons.