Refresh token is broken

[regiscamimura]

The refresh_token method causes config["token"] to be a tuple instead of a string:

zoomus/zoomus/client.py

Lines 98 to 101 in a12bce5

	def refresh_token(self):
	self.config["token"] = (
	util.generate_jwt(self.config["api_key"], self.config["api_secret"]),
	)

[prschmid]

@regiscamimura This has been fixed and the updated code has been merged to develop. Will release the next version shortly that will have this fix.