adds CONVERT_TO_BINARY to websockets in serverless
to use install from here & import the plugin
ie.
npm install git+https://github.com/EvanSchalton/serverless-apigw-ws-binary.git --save-dev
plugins:
- serverless-apigw-ws-binary
this changes all websockets to 'CONVER_TO_BINARY`, I may update later if needed