feat(alerting): Add AWS SES Alerting Provider (#579)

* Add SES Provider

* Formatting

* Rename ses to aws-ses

* Typo

* Parse tag instead of type name

* Use aws.slice to convert string array & rename awsses -> aws-ses

* Rename type

* Update README.md

* Update alerting/config.go

* Rename package aws-ses to awsses

* Update README.md

* PR comments

---------

Co-authored-by: TwiN <twin@linux.com>

config/config.go

@@ -361,6 +361,7 @@ func validateAlertingConfig(alertingConfig *alerting.Config, endpoints []*core.E
 		return
 	}
 	alertTypes := []alert.Type{
+		alert.TypeAWSSES,
 		alert.TypeCustom,
 		alert.TypeDiscord,
 		alert.TypeGitHub,