odigos-io#3561)

Fixes: CORE-271

Always set all resource attributes as labels in exports.

Example:

```
k8s_pod_cpu_usage{
  container_id="b0081ac07439bdf104b5b34e519265985276f73f3dcf35c0b830fda2056b8b61",
  container_image_name="quay.io/prometheus-operator/prometheus-operator",
  container_image_tag="v0.85.0",
  k8s_cluster_uid="1c58e8ee-bd2b-4bfb-b732-a95eebed549d",
  k8s_container_name="kube-prometheus-stack",
  k8s_deployment_uid="a4d88694-cff2-48b5-b5c5-0e65647e2bc3",
  k8s_namespace_name="prometheus",
  k8s_node_name="kind-control-plane",
  k8s_pod_name="kube-prometheus-stack-operator-7f57b4b96f-dtfxs",
  k8s_pod_uid="a3db302f-2f1d-4b19-b426-3b03ee175743",
  k8s_replicaset_name="kube-prometheus-stack-operator-7f57b4b96f",
  k8s_replicaset_uid="c5c11cf1-7156-4ac8-b37f-db266ab4c689",
  odigos_version="v1.5.0-rc1"
}
```

span metrics:

```
traces_span_metrics_calls_total{
  host_arch="aarch64",
  host_name="currency-6ff795bc78-kqqqw",
  http_response_status_code="200",
  instance="813c39cf-fb8c-4235-8b26-c68a17ae09e1",
  job="currency",
  k8s_container_name="currency",
  k8s_deployment_name="currency",
  k8s_namespace_name="default",
  k8s_node_name="kind-control-plane",
  k8s_pod_name="currency-6ff795bc78-kqqqw",
  odigos_version="v1.5.0-rc1",
  os_description="6.12.5-linuxkit",
  os_name="Linux",
  os_type="linux",
  os_version="#1 SMP Tue Jan 21 10:23:32 UTC 2025",
  process_executable_path="/usr/local/sbin/php-fpm",
  process_owner="www-data",
  process_pid="2110",
  process_runtime_name="fpm-fcgi",
  process_runtime_version="8.2.29",
  service_instance_id="813c39cf-fb8c-4235-8b26-c68a17ae09e1",
  service_name="currency",
  span_kind="SPAN_KIND_INTERNAL",
  span_name="Psr\\Http\\Server\\RequestHandlerInterface@anonymous/app/vendor/slim/slim/Slim/MiddlewareDispatcher.php:116$b2::handle",
  telemetry_distro_name="opentelemetry-php-instrumentation",
  telemetry_distro_version="1.1.2",
  telemetry_sdk_language="php",
  telemetry_sdk_name="opentelemetry",
  telemetry_sdk_version="1.3.0"
}
```