vendor: update buildkit to 8effd45b

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/k8s.io/apimachinery/pkg/util/intstr/instr_fuzz.go

@@ -0,0 +1,42 @@
+// +build !notest
+
+/*
+Copyright 2020 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package intstr
+
+import (
+	fuzz "github.com/google/gofuzz"
+)
+
+// Fuzz satisfies fuzz.Interface
+func (intstr *IntOrString) Fuzz(c fuzz.Continue) {
+	if intstr == nil {
+		return
+	}
+	if c.RandBool() {
+		intstr.Type = Int
+		c.Fuzz(&intstr.IntVal)
+		intstr.StrVal = ""
+	} else {
+		intstr.Type = String
+		intstr.IntVal = 0
+		c.Fuzz(&intstr.StrVal)
+	}
+}
+
+// ensure IntOrString implements fuzz.Interface
+var _ fuzz.Interface = &IntOrString{}