vendor: update to latest versions of everything

vendor/github.com/aws/aws-sdk-go/private/protocol/host.go

@@ -0,0 +1,21 @@
+package protocol
+
+// ValidHostLabel returns if the label is a valid RFC 1123 Section 2.1 domain
+// host label name.
+func ValidHostLabel(label string) bool {
+	if l := len(label); l == 0 || l > 63 {
+		return false
+	}
+	for _, r := range label {
+		switch {
+		case r >= '0' && r <= '9':
+		case r >= 'A' && r <= 'Z':
+		case r >= 'a' && r <= 'z':
+		case r == '-':
+		default:
+			return false
+		}
+	}
+
+	return true
+}