Let prow run make generate instead of travis
Travis takes too long, move the generate step to prow.
# when not on a release do extensive checks
if [ -z "$TRAVIS_TAG" ]; then
- make generate-verify
make bazel-build-verify
# The make bazel-test might take longer then the current timeout for a command in Travis-CI of 10 min, so adding a keep alive loop while it runs
