Fix for fluent integration tests for Windows

[musa-asad]

Description of the issue

The fluent tests for Windows reference out-of-scope resources in the provider.tf and don't wait for the amazon-cloudwatch namespace before creating the kubernetes_config_map.cwagentconfig and kubernetes_service_account.fluentbit_service resources.

Description of changes

• Use corresponding in-scope resources in the provider.tf.
• Make the kubernetes_config_map.cwagentconfig and kubernetes_service_account.fluentbit_service resources depend on kubernetes_namespace.namespace.
• Prevented race condition to allow fluent-bit to fully push logs to CW.

License

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Tests

Ran locally with terraform apply:

module.windows.null_resource.validator (local-exec):     fluent_test.go:110: finishing EKS fluent log validation...
module.windows.null_resource.validator (local-exec): --- PASS: TestFluentLogs (2.18s)
module.windows.null_resource.validator (local-exec): PASS
module.windows.null_resource.validator (local-exec): ok         github.com/aws/amazon-cloudwatch-agent-test/test/fluent 2.481s
module.windows.null_resource.validator: Creation complete after 5s

Apply complete! Resources: 32 added, 0 changed, 0 destroyed.

Made following changes for it to work locally since the linux binary doesn't work on Mac:

provisioner "local-exec" {
    command = <<-EOT
      kubectl apply -f ./../../../default_resources/fluenbit-windows-configmap.yaml
      kubectl apply -f ./../../../default_resources/fluenbit-windows-daemonset.yaml
      kubectl rollout status daemonset fluent-bit-windows -n amazon-cloudwatch --timeout 600s
      sed -e 's+WINDOWS_SERVER_VERSION+${var.windows_os_version}+' -e 's+REPLICAS+1+' ./../../../default_resources/test-sample-windows.yaml | kubectl apply -f -
      kubectl rollout status deployment windows-test-deployment --timeout 600s
      sleep 120
    EOT
  }
}

Ran workflow: https://github.com/aws/amazon-cloudwatch-agent/actions/runs/12147698823