Update Bazel version in docs workflow (#2511)
Update Bazel version in docs workflow (#2511)

This was broken by the Bazel upgrade, but I didn't notice because it isn't covered by any presubmits. Sorry!

Part of https://github.com/google/iree/issues/2510
iree-org/iree,google/iree,google/iree,iree-org/iree,google/iree,iree-org/iree,iree-org/iree,iree-org/iree,iree-org/iree,google/iree,iree-org/iree,google/iree,google/iree,google/iree