Fixes #5883: Missing system variables for RUDDER_HEARTBEAT_INTERVAL and SEND_METRICS in Techniques
Fixes #5884: Duplicate report introduced in endExecution bundle
Fixes #5881: rudder_report_generic is not available from failsafe.cf
Merge pull request #584 from jooooooon/bug_5881/rudder_report_generic_is_not_available_from_failsafe_cf

Fixes #5881: rudder_report_generic is not available from failsafe.cf
Merge pull request #585 from jooooooon/bug_5883/missing_system_variables_for_rudder_heartbeat_interval_and_send_metrics_in_techniques

Fixes #5883: Missing system variables for RUDDER_HEARTBEAT_INTERVAL and ...