Point external protobuf dependency at latest commit.
Point external protobuf dependency at latest commit.

google/language-resources,google/language-resources,googlei18n/language-resources,googlei18n/language-resources,googlei18n/language-resources,googlei18n/language-resources,google/language-resources,googlei18n/language-resources,google/language-resources,google/language-resources,googlei18n/language-resources,google/language-resources