Update go dependencies (#4524)

vendor/k8s.io/gengo/examples/set-gen/generators/sets.go

@@ -205,17 +205,19 @@ func $.type|public$KeySet(theMap interface{}) $.type|public$ {
 }
 
 // Insert adds items to the set.
-func (s $.type|public$) Insert(items ...$.type|raw$) {
+func (s $.type|public$) Insert(items ...$.type|raw$) $.type|public$ {
 	for _, item := range items {
 		s[item] = Empty{}
 	}
+	return s
 }
 
 // Delete removes all items from the set.
-func (s $.type|public$) Delete(items ...$.type|raw$) {
+func (s $.type|public$) Delete(items ...$.type|raw$) $.type|public$ {
 	for _, item := range items {
 		delete(s, item)
 	}
+	return s
 }
 
 // Has returns true if and only if item is contained in the set.

vendor/k8s.io/gengo/examples/set-gen/sets/byte.go

@@ -46,17 +46,19 @@ func ByteKeySet(theMap interface{}) Byte {
 }
 
 // Insert adds items to the set.
-func (s Byte) Insert(items ...byte) {
+func (s Byte) Insert(items ...byte) Byte {
 	for _, item := range items {
 		s[item] = Empty{}
 	}
+	return s
 }
 
 // Delete removes all items from the set.
-func (s Byte) Delete(items ...byte) {
+func (s Byte) Delete(items ...byte) Byte {
 	for _, item := range items {
 		delete(s, item)
 	}
+	return s
 }
 
 // Has returns true if and only if item is contained in the set.

vendor/k8s.io/gengo/examples/set-gen/sets/int.go

@@ -46,17 +46,19 @@ func IntKeySet(theMap interface{}) Int {
 }
 
 // Insert adds items to the set.
-func (s Int) Insert(items ...int) {
+func (s Int) Insert(items ...int) Int {
 	for _, item := range items {
 		s[item] = Empty{}
 	}
+	return s
 }
 
 // Delete removes all items from the set.
-func (s Int) Delete(items ...int) {
+func (s Int) Delete(items ...int) Int {
 	for _, item := range items {
 		delete(s, item)
 	}
+	return s
 }
 
 // Has returns true if and only if item is contained in the set.

vendor/k8s.io/gengo/examples/set-gen/sets/int64.go

@@ -46,17 +46,19 @@ func Int64KeySet(theMap interface{}) Int64 {
 }
 
 // Insert adds items to the set.
-func (s Int64) Insert(items ...int64) {
+func (s Int64) Insert(items ...int64) Int64 {
 	for _, item := range items {
 		s[item] = Empty{}
 	}
+	return s
 }
 
 // Delete removes all items from the set.
-func (s Int64) Delete(items ...int64) {
+func (s Int64) Delete(items ...int64) Int64 {
 	for _, item := range items {
 		delete(s, item)
 	}
+	return s
 }
 
 // Has returns true if and only if item is contained in the set.

vendor/k8s.io/gengo/examples/set-gen/sets/string.go

@@ -46,17 +46,19 @@ func StringKeySet(theMap interface{}) String {
 }
 
 // Insert adds items to the set.
-func (s String) Insert(items ...string) {
+func (s String) Insert(items ...string) String {
 	for _, item := range items {
 		s[item] = Empty{}
 	}
+	return s
 }
 
 // Delete removes all items from the set.
-func (s String) Delete(items ...string) {
+func (s String) Delete(items ...string) String {
 	for _, item := range items {
 		delete(s, item)
 	}
+	return s
 }
 
 // Has returns true if and only if item is contained in the set.