Ensure backtracking is enabled for Amazon Relational Database Service (Amazon RDS) cluster

Amazon Aurora MySQL database clusters have backtracking disabled. Backtracking allows you to revert the DB cluster to a specific point in time, in case of failure.

In AWS Console -

1. Sign in to the AWS Console and go to the Amazon RDS console.
2. Select Databases.
3. Select the cluster that you want to modify, and select Modify.
4. For Target Backtrack window, set it to 24 hours.

In Terraform -

1. In the aws_rds_cluster resource, set 'backtrack_window' to '86400' (as it is 24 hours in seconds).

References:
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Managing.Backtrack.html
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/rds_cluster#backtrack_window