Bump C++ client to 3.8.0#270

BewareMyPower wants to merge 2 commits intoapache:mainapache/pulsar-client-python:mainfrom

BewareMyPower:bewaremypower/bump-cpp-3.8.0BewareMyPower/pulsar-client-python:bewaremypower/bump-cpp-3.8.0Copy head branch name to clipboard