chore(e2e): Remove aws_ssh_keypair requirement (#6583)

* chore(e2e): Remove ssh key pair variable requirement

* CR

---------

Co-authored-by: Tony <wongtonyb@gmail.com>

enos/modules/ssh_keypair/main.tf

@@ -0,0 +1,38 @@
+# Copyright IBM Corp. 2024, 2026
+# SPDX-License-Identifier: BUSL-1.1
+
+terraform {
+  required_providers {
+    tls = {
+      source = "hashicorp/tls"
+    }
+    local = {
+      source = "hashicorp/local"
+    }
+  }
+}
+
+variable "local_key_path" {
+  type        = string
+  description = "Path to a local key. If provided, this key will be used instead of generating a new one."
+  default     = null
+}
+
+resource "random_pet" "default" {}
+
+resource "tls_private_key" "ssh" {
+  count     = var.local_key_path == null ? 1 : 0
+  algorithm = "RSA"
+  rsa_bits  = 4096
+}
+
+resource "local_sensitive_file" "private_key" {
+  count           = var.local_key_path == null ? 1 : 0
+  content         = tls_private_key.ssh[0].private_key_pem
+  filename        = "${path.root}/.terraform/tmp/ssh-key-enos-${random_pet.default.id}"
+  file_permission = "0400"
+}
+
+output "private_key_path" {
+  value = var.local_key_path != null ? abspath(var.local_key_path) : abspath(local_sensitive_file.private_key[0].filename)
+}