Add golangci-lint workflow (#4999)

* fix lint workflow

* add golang lint

* close http response body

kube/pkg/quota/v1/evaluator/core/persistent_volume_claims.go

@@ -179,7 +179,7 @@ func (p *pvcEvaluator) UsageStats(options quota.UsageStatsOptions) (quota.UsageS
 var _ quota.Evaluator = &pvcEvaluator{}
 
 func toExternalPersistentVolumeClaimOrError(obj runtime.Object) (*corev1.PersistentVolumeClaim, error) {
-	pvc := &corev1.PersistentVolumeClaim{}
+	var pvc *corev1.PersistentVolumeClaim
 	switch t := obj.(type) {
 	case *corev1.PersistentVolumeClaim:
 		pvc = t

kube/pkg/quota/v1/evaluator/core/pods.go

@@ -144,10 +144,7 @@ func (p *podEvaluator) GroupResource() schema.GroupResource {
 // Handles returns true if the evaluator should handle the specified attributes.
 func (p *podEvaluator) Handles(a admission.Attributes) bool {
 	op := a.GetOperation()
-	if op == admission.Create {
-		return true
-	}
-	return false
+	return op == admission.Create
 }
 
 // Matches returns true if the evaluator matches the specified quota with the provided input item
@@ -276,7 +273,7 @@ func podComputeUsageHelper(requests corev1.ResourceList, limits corev1.ResourceL
 }
 
 func toExternalPodOrError(obj runtime.Object) (*corev1.Pod, error) {
-	pod := &corev1.Pod{}
+	var pod *corev1.Pod
 	switch t := obj.(type) {
 	case *corev1.Pod:
 		pod = t

kube/pkg/quota/v1/evaluator/core/services.go

@@ -94,7 +94,7 @@ func (p *serviceEvaluator) UncoveredQuotaScopes(limitedScopes []corev1.ScopedRes
 
 // convert the input object to an internal service object or error.
 func toExternalServiceOrError(obj runtime.Object) (*corev1.Service, error) {
-	svc := &corev1.Service{}
+	var svc *corev1.Service
 	switch t := obj.(type) {
 	case *corev1.Service:
 		svc = t