fix(web-api): use json content type for chat stream methods - #1749

fix(web-api): use json content type for chat stream methods#1749

zimeg merged 4 commits into

ai-appsslackapi/python-slack-sdk:ai-appsfrom

zimeg-fix-web-api-chat-stream-jsonslackapi/python-slack-sdk:zimeg-fix-web-api-chat-stream-jsonCopy head branch name to clipboard