Update Azure SDK (#4985)

vendor/github.com/Azure/go-autorest/autorest/version.go

@@ -0,0 +1,35 @@
+package autorest
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+	"sync"
+)
+
+const (
+	major = 8
+	minor = 0
+	patch = 0
+	tag   = ""
+)
+
+var once sync.Once
+var version string
+
+// Version returns the semantic version (see http://semver.org).
+func Version() string {
+	once.Do(func() {
+		semver := fmt.Sprintf("%d.%d.%d", major, minor, patch)
+		verBuilder := bytes.NewBufferString(semver)
+		if tag != "" && tag != "-" {
+			updated := strings.TrimPrefix(tag, "-")
+			_, err := verBuilder.WriteString("-" + updated)
+			if err == nil {
+				verBuilder = bytes.NewBufferString(semver)
+			}
+		}
+		version = verBuilder.String()
+	})
+	return version
+}