chore(release): version 1.6.0 [skip ci]

## [1.6.0](terraform-aws-modules/terraform-aws-elasticache@v1.5.0...v1.6.0) (2025-03-30)

### Features

* Set `create_before_destroy` on subnet group ([terraform-aws-modules#29](terraform-aws-modules#29)) ([9133f1e](terraform-aws-modules@9133f1e))