chore(deps): Update Terraform helm to ~> 2.15.0

Author: renovate[bot]

tools/deploy/terraform/main.tf

@@ -10,7 +10,7 @@ terraform {
     }
     helm = {
       source  = "hashicorp/helm"
-      version = "~> 2.10.1"
+      version = "~> 2.15.0"
     }
   }
   backend "s3" {