.github/workflows: Add Terraform 1.3.x to testing matrix (#326)
.github/workflows: Add Terraform 1.3.x to testing matrix (#326)

Reference: https://github.com/hashicorp/terraform/releases/tag/v1.3.0
hashicorp/terraform-provider-random,terraform-providers/terraform-provider-random,terraform-providers/terraform-provider-random,hashicorp/terraform-provider-random