[k8sattributes] Extract the label attributes from the semconv package directly

[ChrsMark]

We should extract the label attributes from the semconv package directly (conventions "go.opentelemetry.io/otel/semconv/v1.38.0" ->

opentelemetry-collector-contrib/processor/k8sattributesprocessor/internal/kube/client.go

Line 20 in 8ce72b2

conventions "go.opentelemetry.io/otel/semconv/v1.38.0"

).

That goes for all of

opentelemetry-collector-contrib/processor/k8sattributesprocessor/internal/kube/client.go

Lines 43 to 66 in 8ce72b2

	K8sPodLabelsKey = "k8s.pod.labels.%s"
	K8sPodLabelKey = "k8s.pod.label.%s"
	K8sPodAnnotationsKey = "k8s.pod.annotations.%s"
	K8sPodAnnotationKey = "k8s.pod.annotation.%s"
	K8sNodeLabelsKey = "k8s.node.labels.%s"
	K8sNodeLabelKey = "k8s.node.label.%s"
	K8sNodeAnnotationsKey = "k8s.node.annotations.%s"
	K8sNodeAnnotationKey = "k8s.node.annotation.%s"
	K8sNamespaceLabelsKey = "k8s.namespace.labels.%s"
	K8sNamespaceLabelKey = "k8s.namespace.label.%s"
	K8sNamespaceAnnotationsKey = "k8s.namespace.annotations.%s"
	K8sNamespaceAnnotationKey = "k8s.namespace.annotation.%s"
	// Semconv attributes https://github.com/open-telemetry/semantic-conventions/blob/main/docs/resource/k8s.md#deployment
	K8sDeploymentLabel = "k8s.deployment.label.%s"
	K8sDeploymentAnnotation = "k8s.deployment.annotation.%s"
	// Semconv attributes https://github.com/open-telemetry/semantic-conventions/blob/main/docs/resource/k8s.md#statefulset
	K8sStatefulSetLabel = "k8s.statefulset.label.%s"
	K8sStatefulSetAnnotation = "k8s.statefulset.annotation.%s"
	// Semconv attributes https://github.com/open-telemetry/semantic-conventions/blob/main/docs/resource/k8s.md#daemonset
	K8sDaemonSetLabel = "k8s.daemonset.label.%s"
	K8sDaemonSetAnnotation = "k8s.daemonset.annotation.%s"
	// Semconv attributes https://github.com/open-telemetry/semantic-conventions/blob/main/docs/resource/k8s.md#job
	K8sJobLabel = "k8s.job.label.%s"
	K8sJobAnnotation = "k8s.job.annotation.%s"

.

Originally posted by @ChrsMark in #45307 (comment)

[github-actions]

Pinging code owners for processor/k8sattributes: @dmitryax @fatsheep9146 @TylerHelmuth @ChrsMark @odubajDT. See Adding Labels via Comments if you do not have permissions to add labels yourself. For example, comment '/label priority:p2 -needs-triage' to set the priority and remove the needs-triage label.