chore: fixing filters

Signed-off-by: Alex Jones <alexsimonjones@gmail.com>

pkg/util/util.go

@@ -7,6 +7,15 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
+func SliceContainsString(slice []string, s string) bool {
+	for _, item := range slice {
+		if item == s {
+			return true
+		}
+	}
+	return false
+}
+
 func GetParent(client *kubernetes.Client, meta metav1.ObjectMeta) (string, bool) {
 	if meta.OwnerReferences != nil {
 		for _, owner := range meta.OwnerReferences {