Fix UTF-8 encoding for special characters (emoji, accented letters, etc.) by encoding JSON as UTF-8 bytes#452

pengfeiye merged 6 commits intomainnylas/nylas-python:mainfrom

CUST-5053-sdk-python-sdk-v-6-13-1-unicode-encode-error-regressionnylas/nylas-python:CUST-5053-sdk-python-sdk-v-6-13-1-unicode-encode-error-regressionCopy head branch name to clipboard