This diff introduces removing the "pinging" async task from the gRPC server and using of the gRPC http/2 keep-alive support of the Tonic.
The full context is located in the [[ https://linear.app/comm/issue/ENG-1842/consider-using-of-grpc-keep-alive-instead-of-ping-messages | ENG-1842 ]] task.
Related Linear task: [[ https://linear.app/comm/issue/ENG-1842/consider-using-of-grpc-keep-alive-instead-of-ping-messages | ENG-1842 ]]