multi: bump btcec/v2 and btcutil to new versions

proxy/proxy_test.go

@@ -35,6 +35,11 @@ const (
 	testPathRegexpGRPC       = "^/proxy_test\\.Greeter/.*$"
 	testTargetServiceAddress = "localhost:8082"
 	testHTTPResponseBody     = "HTTP Hello"
+
+	// DefaultAutogenValidity is the default validity of a self-signed
+	// certificate. The value corresponds to 14 months
+	// (14 months * 30 days * 24 hours).
+	DefaultAutogenValidity = 14 * 30 * 24 * time.Hour
 )
 
 var (
@@ -339,11 +344,12 @@ func runGRPCTest(t *testing.T, tc *testCase) {
 		[]byte("key"), []byte("id"), "loc", macaroon.LatestVersion,
 	)
 	require.NoError(t, err)
+
+	cred, err := macaroons.NewMacaroonCredential(dummyMac)
+	require.NoError(t, err)
 	opts = []grpc.DialOption{
 		grpc.WithTransportCredentials(creds),
-		grpc.WithPerRPCCredentials(macaroons.NewMacaroonCredential(
-			dummyMac,
-		)),
+		grpc.WithPerRPCCredentials(cred),
 	}
 	conn, err = grpc.Dial(testProxyAddr, opts...)
 	require.NoError(t, err)
@@ -402,7 +408,7 @@ func genCertPair(certFile, keyFile string) (*x509.CertPool,
 	crt := tls.Certificate{}
 	err := cert.GenCertPair(
 		"aperture autogenerated cert", certFile, keyFile, nil, nil,
-		false, cert.DefaultAutogenValidity,
+		false, DefaultAutogenValidity,
 	)
 	if err != nil {
 		return nil, nil, crt, fmt.Errorf("unable to generate cert "+