Update Grafana Email Notification Channel
UpdateGrafanaEmailNotificationChannel[PUT]    
curl -X PUT https://accelerator.shimmercat.com/presentation-api/v1/grafana-notification-channel/email/<channel_id> -H 'Authorization: Token <your_authentication_token>' -H 'Content-type: application/json' -d '{"grafana_uid": "<user-id>"}'
curl -X PUT https://accelerator.shimmercat.com/presentation-api/v1/grafana-notification-channel/email/<channel_id> -H 'Authorization: Token <your_authentication_token>' -H 'Content-type: application/json' -d '{"grafana_uid": "<user-id>"}'
Update a single Grafana Email Notification Channel.