fix typo in predicates

plugin/pkg/scheduler/algorithm/predicates/predicates.go

@@ -90,7 +90,7 @@ func (c *CachedNodeInfo) GetNodeInfo(id string) (*api.Node, error) {
 	return node.(*api.Node), nil
 }
 
-//  Note that predicateMetdata and matchingPodAntiAffinityTerm need to be declared in the same file
+//  Note that predicateMetadata and matchingPodAntiAffinityTerm need to be declared in the same file
 //  due to the way declarations are processed in predicate declaration unit tests.
 type matchingPodAntiAffinityTerm struct {
 	term *api.PodAffinityTerm