fix(deps): update terraform terraform-ibm-modules/observability-instances/ibm to v3

Author: terraform-ibm-modules-ops

modules/observability_instance/main.tf

@@ -10,7 +10,7 @@ locals {
 module "observability_instance" {
   # Replace "master" with a GIT release version to lock into a specific release
   source  = "terraform-ibm-modules/observability-instances/ibm"
-  version = "2.13.1"
+  version = "3.1.0"
   providers = {
     logdna.at = logdna.at
     logdna.ld = logdna.ld