Automatic merge from submit-queue

Install go-bindata in cross-build image

Another follow-up to #25584.

We need `go-bindata` to create `test/e2e/generated`, and downloading it with `go get` at build time is painful for a variety of reasons. We can just include it in the cross-build image and not worry about it, especially as it updates very infrequently.

This fixes `hack/update-generated-protobuf.sh` as well.

cc @jayunit100 @soltysh