Fix: use var.database_password instead of hardcoded empty string

Author: raviharshicorp

modules/runtime_container_engine_config/database_config.tf

@@ -4,7 +4,7 @@
 locals {
   database = {
     TFE_DATABASE_USER                         = var.database_user
-    TFE_DATABASE_PASSWORD                     = ""
+    TFE_DATABASE_PASSWORD                     = var.database_password
     TFE_DATABASE_HOST                         = var.database_host
     TFE_DATABASE_NAME                         = var.database_name
     TFE_DATABASE_PARAMETERS                   = var.database_parameters