Merge pull request #9986 from apolcyn/fix_connectivity

Rakefile

src/ruby/.rubocop.yml

src/ruby/end2end/README.md

src/ruby/end2end/channel_closing_client.rb

src/ruby/end2end/channel_closing_driver.rb

src/ruby/end2end/channel_state_client.rb

src/ruby/end2end/channel_state_driver.rb

src/ruby/end2end/end2end_common.rb

src/ruby/end2end/gen_protos.sh

src/ruby/end2end/lib/client_control_pb.rb

src/ruby/end2end/lib/client_control_services_pb.rb

src/ruby/end2end/lib/echo_pb.rb

src/ruby/end2end/lib/echo_services_pb.rb

src/ruby/end2end/protos/client_control.proto

src/ruby/end2end/protos/echo.proto

src/ruby/end2end/sig_handling_client.rb

src/ruby/end2end/sig_handling_driver.rb

src/ruby/end2end/sig_int_during_channel_watch_client.rb

src/ruby/end2end/sig_int_during_channel_watch_driver.rb

src/ruby/ext/grpc/rb_channel.c