Bump Google.Protobuf from 3.9.2 to 3.15.0 in /src/ConsoleGrpcClient#6

dependabot[bot] wants to merge 1 commit intomasterLutsenkoVlad/gRPCAspNetCoreExample:masterfrom

dependabot/nuget/src/ConsoleGrpcClient/Google.Protobuf-3.15.0LutsenkoVlad/gRPCAspNetCoreExample:dependabot/nuget/src/ConsoleGrpcClient/Google.Protobuf-3.15.0Copy head branch name to clipboard