#3140 fix: Read input as bytes in MsgSpec Singer message reader Pull request opened by edgarrmondragon Summary by Sourcery Make MsgSpecReader consume raw bytes from stdin by updating its generic parameter, default_input, and deserialize_json signature, and improve error messaging Bug Fixes: • Include repr of the input line in JSON parse error messages Enhancements: • Change MsgSpecReader to use sys.stdin.buffer as default_input • Update GenericSingerReader parameter and deserialize_json to handle bytes instead of str meltano/sdk