Fix helm default val for heartbeat flags

Author: tiationg-kho

config/helm/aws-node-termination-handler/values.yaml

@@ -285,6 +285,12 @@ enableRebalanceDraining: false
 # deleteSqsMsgIfNodeNotFound If true, delete the SQS Message from the SQS Queue if the targeted node(s) are not found. Only used in Queue Processor mode.
 deleteSqsMsgIfNodeNotFound: false
 
+# The time period in seconds between consecutive heartbeat signals. Valid range: 30-3600 seconds (30 seconds to 1 hour).
+heartbeatInterval: -1
+
+# The duration in seconds over which heartbeat signals are sent. Valid range: 60-172800 seconds (1 minute to 48 hours).
+heartbeatUntil: -1
+
 # ---------------------------------------------------------------------------------------------------------------------
 # Testing
 # ---------------------------------------------------------------------------------------------------------------------