Updates cloud-native-toolkit/terraform-ibm-activity-tracker module to v2.4.0 (#330)

Author: cloudnativetoolkit

terraform/stages-sre/stage-activity-tracker.tf

@@ -1,5 +1,5 @@
 module "sre_activity-tracker" {
-  source = "github.com/cloud-native-toolkit/terraform-ibm-activity-tracker.git?ref=v2.2.0"
+  source = "github.com/cloud-native-toolkit/terraform-ibm-activity-tracker.git?ref=v2.4.0"
 
   resource_group_name      = var.resource_group_name
   resource_location        = var.region