Fix omniauth-google-oauth2 dependencies in Gemfile.lock

What does this MR do?

This fixes the dependencies definition in Gemfile.lock for the omniauth-google-oauth2 gem.

The gem version was updated in https://gitlab.com/gitlab-org/gitlab-ce/commit/85cb5635babe5aa2c051fa2f40be4b28a106640f but its dependencies were not updated accordingly at that time. It seems that Bundler 1.15.0 is stricter when dependencies in Gemfile.lock are not the same as in RubyGems's records (which is good IMO).

Why was this MR needed?

Because source install of GitLab would fail when using Bundler 1.15.0.

Closes #32653 (closed)