Change onSctpOutboundPacket 3rd parameter type to SIZE_T#2097

stefankiesz wants to merge 2 commits intorelease-v1.12.1awslabs/amazon-kinesis-video-streams-webrtc-sdk-c:release-v1.12.1from

fix-definition-onSctpOutboundPacketawslabs/amazon-kinesis-video-streams-webrtc-sdk-c:fix-definition-onSctpOutboundPacketCopy head branch name to clipboard