Add SourceArn parameter to ses send_email

[Raphael-D-S]

Hi,

SES send_email call should have the SendArn parameter.
In the organizational context, SES identities are often defined on a dedicated aws account

https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ses/client/send_email.html

aws-health-aware/handler.py

Lines 267 to 283 in eae99cc

	response = client.send_email(
	Source=SENDER,
	Destination={
	'ToAddresses': RECIPIENT
	},
	Message={
	'Body': {
	'Html': {
	'Data': BODY_HTML
	},
	},
	'Subject': {
	'Charset': 'UTF-8',
	'Data': SUBJECT,
	},
	},
	)