Add a dependency on the documentation annotation
Add a dependency on the documentation annotation

Somehow we are able to get it indirectly with both Bazel and internal.
The problem is that if this is missing we don't add the plugin to run
the documentation generator on this package.

Change-Id: I4539e50627b4b99a63a5ab850332bd66e1d561c5

google/copybara,google/copybara,google/copybara