build(deps): bump protobuf from 3.15.6 to 3.15.8 in /examples/grpc-bridge/client#17

dependabot[bot] wants to merge 1 commit intomasterwangfakang/envoy:masterfrom

dependabot/pip/examples/grpc-bridge/client/protobuf-3.15.8wangfakang/envoy:dependabot/pip/examples/grpc-bridge/client/protobuf-3.15.8Copy head branch name to clipboard