Improve PodEvictor observability through EvictOptions (#1349)

* feat: profile name for pods_evicted metric

Support new label "profile" for "pods_evicted" metric to allow
understand which profiles are evicting more pods, allowing better
observability

* refactor: evictoptions improved observability

Send profile and strategy names for EvictOptions, allowing Evictors to
access observability information

* cleanup: remove unnecessary evictoption reference

* feat: evictoptions for nodeutilzation

Explicit usage of options when invoking evictPods from the helper
function from nodeutilization for both highnodeutilization and
lownodeutilization

pkg/framework/plugins/nodeutilization/lownodeutilization.go

@@ -24,6 +24,7 @@ import (
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/klog/v2"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
 	frameworktypes "sigs.k8s.io/descheduler/pkg/framework/types"
@@ -191,6 +192,7 @@ func (l *LowNodeUtilization) Balance(ctx context.Context, nodes []*v1.Node) *fra
 		sourceNodes,
 		lowNodes,
 		l.handle.Evictor(),
+		evictions.EvictOptions{StrategyName: LowNodeUtilizationPluginName},
 		l.podFilter,
 		resourceNames,
 		continueEvictionCond)